I.O.I s Debut and Disbandment
I.O.I is a project girl group formed through Mnet s survival show called Produce 101 (Season 1). Out of the 101 trainees, only 11 contestants were given the chance to debut in the K-pop industry. These participants are Lim Nayoung, Jeon Somi, Kim Sejeong, Kim Sohye, Choi Yoojung, Kim Chungha, Jung Chaeyeon, Yoo Yeonjung, Kang Mina, Kim Doyeon, and Zhou Jieqiong or Kyulkyung.
I.O.I made their debut on May 4, 2016 with an extended play titled Chrysalis, which features the title track Dream Girls. Since then, the girl group promoted as a full group and as a sub-unit for less than a year.