Cai Xu Kun is a Chinese singer, songwriter, and rapper. When he was younger, he was allowed to join the boy group TFboys, but his parents decided it was better for him to focus on his studies because of his youth. In 2015, he rose to fame after participating in the Chinese-Korean survival show Super Idol. He joined its subunit SWIN-S but chose to leave a few months later after finding problems in the contract. In 2018, Kun participated in iQiyi's survival show, Idol Producer, and won first place with over 47 million votes. He debuted as a member of iQiyi's boy group, Nine Percent.
In 2020, it was announced that Cai will be the Youth Producer of iQiyi's, Youth With You, the 2nd season of the survival show that created Kun's former group.
