Cai Xukun: The Life Story Behind China's Idol Star

Cai Xukun is one of the most watched young stars in China. He is a singer, a dancer, and a performer who seems to have been made for the age of social media, where a single clip can travel to millions of phones in a single night. He won the contest Idol Producer in 2018, and from that night on, his name has rarely left the news. His fans are among the most devoted in the country, and his critics are among the loudest. That mix of love and argument is the story of his life so far.

He is also known simply as KUN, and his journey has not been a smooth one. He trained in South Korea, he joined a group that did not last, and he had to start again in China. He became famous very fast, and he learned very fast what fame can do to a young person. His songs, his dancing, and his style have made him a star, but his story is also a lesson about how quickly a young idol can rise, and how hard it is to stay at the top.

This is the story of a boy from Wenzhou who wanted to perform, who worked for years in training rooms far from home, and who became, almost overnight, one of the most famous faces in Chinese entertainment.

A Boy From Wenzhou Who Loved to Perform

Cai Xukun was born on 2 August 1998 in Wenzhou, a city in Zhejiang province on China’s eastern coast. Wenzhou is known for its business spirit, and for people who work hard and take risks. Cai Xukun grew up in that atmosphere, and from an early age he showed a love of performing. He liked to sing, he liked to dance, and he liked being on a stage, even a small one.

As a child, he appeared in television dramas, and he began to learn what it meant to work in front of a camera. Child acting is not easy. It means long days, many takes, and adults telling you where to stand. But it also teaches a child how the entertainment business works, and Cai Xukun learned those lessons early. He was not just a boy who liked to sing in his room. He was a boy who had already worked on real sets, with real crews, before he was a teenager.

His family supported his interest, and as he grew older, his dream became clearer. He did not want to be a part-time performer. He wanted to be a singer and a dancer, and he wanted to do it at the highest level. In China, the highest level often means training in South Korea, where the idol system is famous for its hard work and its polish. Cai Xukun decided to take that road, and it would test him in ways he had not expected.

He was still young when he left home to train, and the life of a trainee is hard. It means hours of dance practice every day, hours of singing practice, and very little free time. It means living far from family, eating simply, and being judged constantly by teachers who are looking for the smallest mistake. Many young people give up. Cai Xukun did not give up, but the road ahead would still be longer and harder than he hoped.

Training in Korea and the Group That Did Not Last

Cai Xukun trained in South Korea, where he learned the skills that would later make him famous: sharp dancing, strong singing, and the polished stage manner of a K-pop idol. The training was strict, and it shaped him into a performer who could dance hard and sing at the same time, which is one of the hardest things a pop singer can do. He worked for years in practice rooms, and he built the foundation of his career one rehearsal at a time.

In 2016, he debuted as a member of the Chinese boy group SWIN. It was a real debut, with a real stage, but the group did not become a great success. The members worked hard, and they performed, but the public did not take to them in the way the company had hoped. For a young singer who had trained for years, that is a painful result. He had done the work, he had waited, and the reward did not come.

He left SWIN, and for a time his future was uncertain. He had skills, he had experience, and he had a small group of fans, but he did not have a clear path forward. Many idols in that position fade away, and their training becomes a memory rather than a career. Cai Xukun decided to try again, this time in China, where a new kind of singing contest was about to change the whole idol business.

The decision to return to China and enter Idol Producer was a gamble. He was not a complete unknown, but he was not a star either. He was a young man with training, talent, and a second chance, and he knew that this might be his last good chance. He threw himself into the contest, and the result would be bigger than anyone expected.

Idol Producer and the Night Everything Changed

Idol Producer was a televised contest on iQIYI in 2018, and it was different from older singing shows. It was about idols: young men who could sing, dance, and perform as a group. One hundred trainees entered, and the audience voted for their favourites week after week. Cai Xukun entered as one of the strongest performers, and from the first episode, viewers could see his skill. His dancing was sharp, his singing was steady, and his stage presence was calm and confident.

He quickly became the most popular trainee on the show. His fans voted for him in huge numbers, and his performances were shared widely online. He sang and danced with a polish that came from his years of training, and he stood out in a contest full of talented young men. Week after week, he stayed at the top of the rankings, and it became clear that he was not just a favourite. He was the favourite.

In April 2018, he won the contest, finishing first with a very large number of votes. He became the centre of Nine Percent, the nine-member group formed from the show’s winners. The group was an instant success, with concerts, albums, and millions of fans. For Cai Xukun, it was the moment his years of training finally paid off. He had gone from a trainee in Korea to the centre of the most popular new group in China, and his face was suddenly everywhere.

Nine Percent was a temporary group, as these contest groups often are, and its members knew from the start that it would not last forever. But while it lasted, it was huge. The group toured, released music, and filled stadiums. Cai Xukun, as the centre, carried much of the attention, and he handled it with a calm that surprised many people. He had waited a long time for this moment, and he was not going to waste it.

Solo Songs, Dancing, and a Star of His Own

After Nine Percent, Cai Xukun began a solo career, and he had to prove that he could stand alone without eight other members beside him. His first solo songs showed a singer who wanted to control his own music. “Pull Up”, released in 2018, was a smooth and confident song that became a hit. “Wait Wait Wait” and “Young”, which followed, showed his range, from gentle ballads to energetic dance tracks.

One of his most loved songs is “Lover”, released in 2020, a romantic and dreamy track that became widely popular. The song’s soft melody and its warm words made it a favourite at concerts, and it showed that Cai Xukun was not just a dancer. He was a singer who could carry a song with feeling, and who could write music that people wanted to hear again and again.

He also became a mentor himself. In 2020, he served as the youth producer representative on the show Youth With You 2, guiding young female trainees through the same kind of contest he had won. It was a new role for him, and viewers liked the calm, thoughtful way he spoke to the trainees. He had been in their place, and he knew how hard the contest was. His advice was practical and kind, and it showed a more mature side of the young star.

His dancing remained a central part of his image. He is known for sharp, clean moves, and for performances that mix singing and dancing without losing breath or control. That skill comes from his years of training, and it is one of the reasons his concerts are so popular. Fans do not just listen to Cai Xukun. They watch him, and they admire the hard work that his performances show.

Jokes, Memes, and the Price of Being Watched

Fame at Cai Xukun’s level comes with a strange cost: everything you do can become a joke. Early in his career, a clip of him playing basketball became a widely shared meme online, and for a time, the joke seemed to follow him everywhere. People who had never heard his songs knew the meme, and they laughed at it without knowing who he was. It was a hard experience for a young star, because the joke was not about his music. It was about a moment that had nothing to do with his talent.

He responded in different ways over time. At first, his team took legal steps against some of the harshest uses of the clip, which drew more attention. Later, he showed a lighter touch, and he seemed to accept that a public figure cannot control every joke. That change in approach won him respect, because it showed that he could laugh at himself and move on. In the end, the meme faded, but the lesson stayed: in the age of social media, a star’s image is partly made by strangers, and no one can fully control it.

His fans, who call themselves IKUN, are among the most active and organised in Chinese entertainment. They vote, they stream his songs, and they defend him online with great energy. That devotion has helped his career enormously, but it has also created arguments. Fan wars are a part of Chinese pop, and Cai Xukun’s fans have been involved in many of them. The passion of his supporters is real, but it can also make his name a subject of debate even when he has done nothing new.

In 2023, reports about his private life led to a pause in his public work, and his name was again at the centre of public discussion. The details were widely reported and debated online, and his public appearances became rare for a time. It was a difficult period for a star who had been so visible, and it showed how quickly a career can be shaken by stories about private life. He has since worked to return to music and to the stage, and his fans have waited for him. The episode remains a reminder that fame is fragile, and that a young star’s life is watched in a way that most people’s lives are not.

The Return to Music and the Work Ahead

Cai Xukun’s story is still being written, and his return to music is the part his fans care about most. He is a singer and a dancer with rare training, and his best work has always come from the stage and the studio, not from the noise around him. His concerts, his songs, and his performances are the places where he can speak for himself, and they are the reason his fans have stayed loyal through the hard times.

He has the talent to build a long career, if he can keep his focus on music. His voice is strong, his dancing is sharp, and his stage presence is calm and sure. He has also shown that he can write and shape his own songs, which is a skill that many idols never learn. A singer who can write his own music has a future that does not depend on a company or a contest. It depends on his own ideas, and Cai Xukun has shown that he has ideas of his own.

The road ahead will not be easy. The idol world moves fast, and new faces arrive every year. A star who pauses, even for a short time, can find that the public has moved on. But Cai Xukun has already come back once, after SWIN, and he has already shown that he can win a second chance. His fans believe he can do it again, and his training gives him a foundation that few young stars have.

For Chinese pop, his career is a sign of how the industry has changed. The old path was a record company choosing a singer and promoting him slowly. The new path is a contest, a vote, and a sudden rise, with millions of fans deciding a star’s fate in a few weeks. Cai Xukun is the clearest example of that new path, and his story shows both its power and its danger. It can make a star in a night, but it can also take the star away just as fast.

The Music He Makes and the Sound He Is Building

Cai Xukun’s music is different from the music of many idols his age, because he has tried to control it himself. From his first solo songs, he has been involved in writing, in choosing the sound, and in shaping the final recording. That control is unusual for a young star, and it shows a singer who wants to be more than a voice for other people’s songs. He wants to be an artist, and he is building that identity one release at a time.

His early solo work was smooth and confident, with a sound that mixed pop, R and B, and electronic music. “Pull Up” was a good example: it was sleek, modern, and full of the polish that comes from his years of training in Korea. The song showed a singer who knew how to move, how to sing, and how to hold a stage. It was a strong debut, and it told the public that Cai Xukun was not just a contest winner. He was a solo artist with his own sound.

“Wait Wait Wait” and “Young” followed, and they showed different sides of him. One was gentle and romantic, the other was energetic and youthful, and together they showed a singer who could move between moods. That range is important, because a solo artist cannot survive on one sound alone. He needs to show that he can sing a ballad as well as a dance track, and Cai Xukun did that from the start.

“Lover”, released in 2020, is perhaps his most loved song, and it shows his style at its best. The song is soft, dreamy, and romantic, with a melody that is easy to remember and words that feel warm and honest. It became a favourite at his concerts, where fans sing along to every word, and it showed that he could write a love song that felt personal rather than factory-made. A song like that does not come from a team alone. It comes from a singer who has thought about what love feels like, and who has put that feeling into music.

He has also worked hard on his live performances, which are a central part of his image. His concerts mix singing and dancing in a way that few Chinese singers can match, because his training in Korea taught him to do both at once without losing breath or control. That skill is hard to learn, and it is easy to lose if a singer stops practising. Cai Xukun has kept practising, and his shows are known for their energy and their polish.

His music videos are also a part of his art. He pays attention to how he looks, how he moves, and how the story of a song is told on screen. In a world where a music video can travel further than a song, that attention matters. His videos are sleek and modern, and they show a young star who understands the visual side of pop as well as the musical side. That understanding comes from his years in the idol system, where image and sound are built together.

He is still young, and his sound is still growing. The music he makes now is different from the music he made in Nine Percent, and it will be different again in a few years. That growth is a good sign. A singer who stays the same will soon be forgotten, but a singer who keeps learning, keeps writing, and keeps changing has a future. Cai Xukun has shown that he wants to keep growing, and his fans are waiting to see where his music goes next.

The Dancer’s Discipline and the Hours No One Sees

Cai Xukun’s dancing is one of the first things people notice about him, but few people think about the hours behind it. He trained for years in South Korea, in practice rooms where the days were long and the work was hard. A dancer in training practises the same steps again and again, until the movement becomes natural, and until the body can do it without thinking. That is a slow and painful process, and it is the reason his dancing looks so clean and so sharp on stage.

His training taught him to sing and dance at the same time, which is one of the hardest things a pop singer can do. Singing alone takes breath, and dancing alone takes breath, and doing both together takes a kind of control that only comes from years of practice. Cai Xukun can do it, and he can do it for a whole concert, without losing his voice or his step. That skill is the foundation of his live performances, and it is the reason his concerts are so popular.

He has kept that discipline even after becoming famous. A star who stops practising will soon lose his edge, and his dancing will become sloppy. Cai Xukun has not let that happen. He still trains, he still rehearses, and he still treats his body like an instrument that needs care. That discipline is easy to miss, because the audience only sees the finished performance, but it is the real reason his shows work. Behind every sharp move on stage are a thousand hours in a practice room that no one ever saw.

His dancing also shows in his music videos, where his movements are precise and expressive. A good dance in a video is not just about looking good. It is about telling the story of the song with the body, and Cai Xukun does that well. He uses his training to make the video feel alive, and that aliveness is part of why his songs travel so far online. A viewer who sees him dance wants to watch again, and that second watch is often the start of becoming a fan. His concerts also show how much thought he puts into the visual side of a performance. The staging is modern and dramatic, with lights, screens, and effects that match the mood of each song, and his dancing is at the centre of it all. A concert is not just a list of songs for him. It is a show, built with care, where the music, the movement, and the visuals work together. Fans who attend often say that the experience feels complete, because every part of the night has been planned. That attention to detail comes from his years of training, where he learned that a performance is made of many small parts, and that each part matters.

My Take:

I have mixed feelings about Cai Xukun, and I want to be honest about them, because his story is not a simple one. On the one hand, I admire his talent. He trained for years in Korea, he can dance and sing at the same time, and he won Idol Producer by a very large margin. That is not luck. That is the result of hard work in practice rooms, far from home, when no one was watching. I respect that work, and I think anyone who has trained that hard deserves to be heard.

On the other hand, I worry about the world he lives in. The idol world is a strange place. It makes young people famous very fast, and it asks them to be perfect all the time. A single clip, a single rumour, a single joke can follow a star for years. Cai Xukun learned that with the basketball meme, and he learned it again in 2023, when reports about his private life paused his career. I do not think it is fair that a young person’s whole life is judged by strangers on the internet, but that is the world he chose, and it is the world his fans live in too.

What I like most about him is his calm. On stage, he does not shout or beg for attention. He performs with a quiet confidence, and he lets his dancing and his singing do the talking. That calm is rare in a young star, and I think it comes from his training. A person who has practised a dance a thousand times does not need to show off. He just does it, and the work speaks for itself. I wish more young stars had that calm, because it makes the performance feel real instead of desperate.

I also think about his fans, the IKUN, and about the love they give him. It is a powerful thing to have millions of people who will vote for you, stream your songs, and defend you online. But it is also a heavy thing, because a star can start to believe that the fans’ love is the same as real life. It is not. Real life is quieter, and it does not come with applause. I hope Cai Xukun knows the difference, and I hope he has people around him who tell him the truth, not just what he wants to hear.

His time as a mentor on Youth With You 2 impressed me. He was kind to the trainees, and he spoke to them as someone who had been in their place. That is a good use of fame. A star who has won a contest can teach the next group how to survive it, and that teaching is worth more than another hit song. I think he should do more of that kind of work, because it shows a maturity that his critics do not always see.

If I am honest, I do not know what his future will be. The idol world moves fast, and a pause can be costly. But I do know that he has the skills to come back, if he focuses on music. His voice, his dancing, and his ability to write his own songs are real, and they do not disappear because of a rumour or a meme. The question is whether he will be given the space to use them, and whether he will choose the studio over the noise. I hope he chooses the studio.

What would I say to a young reader who wants to be like him? I would say: learn your craft first. Cai Xukun’s training is the reason he won, and it is the reason he can still perform at a high level. Do not chase fame before you have the skills to carry it, because fame without skill is a short and painful ride. Practise, study, and be ready, so that when your chance comes, you can take it the way he did on Idol Producer.

I also want to say something to the fans, and to the people who make memes. A young star is still a young person, and a joke that seems harmless can hurt. Laughing at a basketball clip is one thing, but turning a person’s life into a permanent joke is another. I think the internet needs more kindness, and I think Cai Xukun’s story shows why. He is a talented young man who has worked very hard, and he deserves to be judged by his music, not by a clip or a rumour.

In the end, I think his story is a warning and a hope at the same time. It warns us that fame can be fast, fragile, and cruel. And it hopes that talent, training, and hard work can still carry a young person through. I do not know if Cai Xukun will have a long career or a short one, but I know that his best moments have been on stage, singing and dancing, and that is where I hope he returns. If he does, and if he keeps making music that is truly his, I think his fans will be waiting, and I think new listeners will find him too. I also want to think about the idol system itself, because Cai Xukun’s story is really the story of that system. The system takes young people, trains them hard, and makes them famous very fast. It gives them a stage, a fan base, and a great deal of money, but it also takes away their privacy, their freedom, and their right to make mistakes in private. I think that trade is too hard for most young people, and I think the system needs to change. A young star should be allowed to grow up, to make mistakes, and to live a private life, without the whole internet watching. Cai Xukun’s story shows what happens when that is not allowed, and I hope the industry learns from it.

His fans, the IKUN, also make me think. They are among the most organised fans in China, and they have done a great deal for him. They vote, they stream, they buy, and they defend him online with great energy. That devotion is real, and it has helped his career enormously. But I also worry that such devotion can become a burden, both for the fans and for the star. A fan who spends all her money and all her time on a star may forget her own life, and a star who depends on that devotion may forget how to live without it. I hope both sides find a healthy balance, because a fan community should lift people up, not wear them out.

I think about his childhood acting too, and about what it means to work from a very young age. He was a child actor before he was a singer, and he learned the entertainment business early. That early start gave him skills, but it also took away part of his childhood. He did not have a normal school life, and he did not have the freedom to be an ordinary boy. I am glad he has succeeded, but I think the industry should ask itself whether children should be working that hard, and whether the price of early fame is too high. He survived it, and he thrived, but not every child would, and that is worth remembering.

If I could speak to him directly, I would say this: your talent is real, and it does not depend on a contest, a group, or a rumour. You can dance, you can sing, and you can write your own songs, and those skills will still be there when the noise fades. Focus on the studio, focus on the stage, and let the music speak for you. The internet will always have something to say, but a good song will outlast a thousand posts. That is the lesson of your own career, and I hope you remember it.

I also want to say something to the people who make memes and jokes about young stars. A joke can be funny, but it can also be cruel, especially when it follows a person for years. Cai Xukun’s basketball clip became a joke that had nothing to do with his music, and it followed him for a long time. I think the internet needs more kindness, and I think we should judge a singer by his songs, not by a clip or a rumour. He is a talented young man who has worked very hard, and he deserves that fairness.

In the end, I think his story is a warning and a hope at the same time. It warns us that fame can be fast, fragile, and cruel, especially for a young person. And it hopes that talent, training, and hard work can still carry a young person through. I do not know if Cai Xukun will have a long career or a short one, but I know that his best moments have been on stage, singing and dancing, and that is where I hope he returns. If he does, and if he keeps making music that is truly his, I think his fans will be waiting, and I think new listeners will find him too. I also want to think about his dancing, because it is the part of his talent that is easiest to overlook. People talk about his looks, his songs, and his fame, but his dancing is the result of years of hard training in practice rooms that no one ever saw. He can sing and dance at the same time, for a whole concert, without losing his breath, and that is a rare skill. It comes from discipline, not from luck, and it is the reason his live shows work. I think young performers should learn from that. Talent is not enough. You need hours of practice, and you need the patience to repeat the same steps until they become natural. That is the unglamorous truth behind every great performance, and Cai Xukun’s career is proof of it.

I also think about the young trainees who are training right now, in Korea and in China, hoping for their own Idol Producer moment. They practise for hours, they live far from home, and they do not know if they will ever debut. Cai Xukun’s story tells them that the training matters, even if the first group fails, and even if the road is longer than they hoped. He trained, he joined SWIN, he left, and he tried again. That second try made him a star. I hope those trainees hear that message, because it is a hopeful one: a failed debut is not the end of your story. It can be the start of a better one, if you keep working and keep believing.

What I keep returning to, when I think about Cai Xukun, is the image of a young man in a practice room, far from home, repeating the same dance steps until his legs ached, because he believed that one day the work would matter. That belief is the truest part of his story, and it is the part that no meme, no rumour, and no pause in his career can take away. Fame can be given and taken in a night, but training stays in the body, and songs stay in the memory. If he trusts that work, and if he returns to the studio and the stage with the same discipline he showed as a trainee, I believe he has a future. His fans have waited before, and I think they will wait again, because they have seen what he can do when he is at his best. One more thought about Cai Xukun: the idol world moves fast, and a star who pauses can find that the public has moved on. But talent does not disappear during a pause. His voice, his dancing, and his ability to write his own songs are still there, waiting to be used. If he returns to the studio with focus and with humility, and if he lets the music speak louder than the noise around him, I believe he can build a second act that is stronger than the first. His fans have shown that they will wait, and the best way to repay that patience is with good songs, made carefully and honestly. One more thought about Cai Xukun: the idol world moves fast, and a star who pauses can find that the public has moved on. But talent does not disappear during a pause. His voice, his dancing, and his ability to write his own songs are still there, waiting to be used. If he returns to the studio with focus and with humility, and if he lets the music speak louder than the noise around him, I believe he can build a second act that is stronger than the first. His fans have shown that they will wait, and the best way to repay that patience is with good songs, made carefully and honestly, one at a time.

Frequently Asked Questions

When was Cai Xukun born?

Cai Xukun was born on 2 August 1998 in Wenzhou, Zhejiang province, on China’s eastern coast. He grew up there and began performing as a child, appearing in television dramas before he became a singer. He is also widely known by the name KUN.

How did Cai Xukun become famous?

He became famous by winning the contest Idol Producer in 2018, finishing first with a very large number of votes. He became the centre of Nine Percent, the nine-member group formed from the show. Before that, he had trained in South Korea and debuted in the group SWIN in 2016.

What are Cai Xukun’s best-known solo songs?

His best-known solo songs include “Pull Up” from 2018, “Wait Wait Wait”, “Young”, and “Lover” from 2020. “Lover” is a romantic and dreamy song that became very popular, while “Pull Up” showed his smooth and confident style as a solo singer.

Was Cai Xukun in the group Nine Percent?

Yes, he was the centre of Nine Percent, the group formed from the winners of Idol Producer in 2018. The group was an instant success, with concerts and albums, but it was a temporary group, as contest groups often are. After it ended, Cai Xukun began his solo career.

Did Cai Xukun work as a mentor on a singing show?

Yes, in 2020 he served as the youth producer representative on Youth With You 2, guiding young female trainees through the contest. Viewers liked his calm and thoughtful manner, and his advice came from his own experience of winning Idol Producer.

Why did Cai Xukun pause his public work in 2023?

In 2023, reports about his private life led to a pause in his public work, and his appearances became rare for a time. The reports were widely discussed online, and the period showed how quickly a young star’s career can be shaken by stories about private life. He has since worked to return to music and the stage.