I.O.I, also known as Ideal of Idol, was a South Korean girl group formed through
talent agency CJ E&M's reality show Produce 101 in 2016. The group consisted of
eleven members selected from a pool of 101 trainees from various entertainment
companies: Jeon So-mi, Kim Se-jeong, Choi Yoo-jung, Kim Chung-ha, Kim So-hye,
Zhou Jieqiong, Jung Chae-yeon, Kim Do-yeon, Kang Mi-na, Lim Na-young, and Yoo
Yeon-jung. Chrysalis, their debut EP, was released in 2016 and climbed to Number
4 on South Korea's Circle Chart. Before their official debut, the group had
planned to issue the single "Crus...