I.O.I (Hangul: 아이오아이; also known as Ideal of Idol) was a South Korean girl group formed by CJ E&M through the 2016 reality show Produce 101 on Mnet. The group is composed of eleven members chosen from a pool of 101 trainees from various entertainment companies.
The final lineup consists of: JYP Entertainment's Somi (소미), Jellyfish Entertainment's Sejeong (세정), Fantagio Music's Yoojung (유정), MNH Entertainment's Chungha (청하) .
