Member: Jeon So-mi
Other name: Ennik Douma (Father is Dutch, Mother is Korean-Canadian)
Date of birth: March 9, 2001
Experience: Trained under JYP Entertainment, made it finale of show "Sixteen" but failed to make final cut to debut as member of "Twice"
Ranking on Produce 101 finale: 1st

Member: Kim Se-jung
Date of birth: August 28, 1996
Ranking on Produce 101 finale: 2nd

Member: Choi Yoo-jung
Date of birth: November 12, 1999
Ranking on Produce 101 finale: 3rd

Member: Kim Chung-ha
Date of birth: February 9, 1996
Ranking on Produce 101 finale: 4th

Member: Kim So-hye
Date of birth: July 19, 1999
Experience: trained to debut as an actress under RedLine Entertainment
Ranking on Produce 101 finale: 5th

Member: Zhou Jie-qiong (Joo Gyeol-gyung)
Date of birth: December 16, 1998
Experience: trained Pledis Entertainment, member of pre-debut group Pledis Girlz
Ranking on Produce 101 finale: 6th

Member: Jung Chae-yeon
Date of birth: December 1, 1997
Experience: debuted as member of "DIA" in 2015
Ranking on Produce 101 finale: 7th

Member: Kim Do-yeon
Date of birth: December 4, 1999
Ranking on Produce 101 finale: 8th

Member: Kang Mi-na
Date of birth: December 3, 1999
Ranking on Produce 101 finale: 9th

Member: Im Na-young (leader)
Date of birth: December 18, 1995
Experience: trained 5 years under Pledis Entertainment, member of pre-debut group Pledis Girlz
Ranking on Produce 101 finale: 10th

Member: Yu Yeon-jung
Date of birth: August 3, 1999
Ranking on Produce 101 finale: 11th

Debut: Through reality show "Produce 101" in 2016


The group I.O.I debuted in 2016 through the reality survival show "Produce 101" on Mnet. The group members were chosen from a pool of 101 trainees from various entertainment companies/agencies in Korea. The 11 finalists of the show were able to debut as a member of the new group I.O.I. The group is contracted to actively promote four albums (as a whole group or sub-unit groups) over the span of 10 months.

The name I.O.I is short for "Ideal of Idol", meaning that the group wants to meet all the ideal criteria for an idol group.

This method of screening and debuting of a girl group (most notably girls that had already started receiving training under their respective various talent agencies) was never tried before until the show Produce 101.


-Produce 101-Crush (single, April 5, 2016): Crush
-Chrysalis (mini album, May 4, 2016): I.O.I. (Intro), Dream Girls, Knock Knock Knock, Doo Wap, Crush, When The Cherry Blossoms Fall, Pick Me