This popular Chinese boy band broke up on Oct 9, after just 18 months together, causing many fans to voice their disappointment. The group rose to fame in 2018 on the hit reality show Idol Producer, and in November that year released its debut album To the Nines. The nine-member outfit, led by Cai Xukun, who has nearly 30 million followers on his Sina Weibo account, rocked the country's entertainment scene and saw the rise of the "fan economy". More male and female pop groups are now emerging, such as R1SE, an 11-member boy group.