

IOI
Introduction to IOI
IOI debuted on May 4, 2016 under CJ E&M
IOI was a South Korean girl group formed by CJ E&M through the 2016 reality show Produce 101 on Mnet. The group was composed of eleven members chosen from a pool of 101 trainees from various entertainment companies.
Agency | CJ E&M |
Debut | May 4, 2016 |
Years Active | 2016-2017 |
Debut to 1st Win | 104 days |
Most Popular Member | Chungha |
Country | South Korea |


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IOI Member Profiles

Nayoung
Lim Na Young
Height | 5'7" (171cm) |
Date of Birth | 23 years old, born December 18, 1995 |
Blood Type | 0 |
Position | Leader, Main Dancer, Lead Rapper, Vocalist |
NaYoung was a member of the girl group IOI, currently she's part of the girl group PRISTIN, she ranked 10 on Produce 101 and was the leader of IOI.
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Sohye
Kim So Hye
Height | 5'4" (163cm) |
Date of Birth | 19 years old, born July 19, 1999 |
Blood Type | A |
Position | Singer |
Sohye was a member of the girl group IOI, currently she's a actress, she ranked 5 on Produce 101.

Mina
Kang Mina
Height | 5'5" (165cm) |
Date of Birth | 19 years old, born December 4, 1999 |
Blood Type | 0 |
Position | Main Rapper, Vocalist |
Mina is a member of Jellyfish Entertainment´s first Girlgroup, Gugudan, and represents the Number 9. She also appeared on Produce101 Season 1 where she became part of project group I.O.I.

Yeonjung
Yu Yeonjung
Height | 5'6" (167cm) |
Date of Birth | 19 years old, born August 3, 1999 |
Blood Type | A |
Position | Main Vocalist, Maknae |
Yeonjung was a member of the girl group IOI, currently she's part of the girl group COSMIC GIRLS/WJSN, she ranked 11 on Produce 101 and was the main vocal of IOI.
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Sejeong
Kim Sejeong
Height | 5'5" (164cm) |
Date of Birth | 22 years old, born August 28, 1996 |
Blood Type | AB |
Position | Main Vocalist, Face of the |
Sejeong was a member of the girl group IOI, currently she's part of the girl group GUGUDAN, she ranked 2 on Produce 101 and she represents the number 3 on GUGUDAN.

Chaeyeon
Jung Chae Yeon
Height | 5'6" (166cm) |
Date of Birth | 21 years old, born December 1, 1997 |
Blood Type | A |
Position | Vocalist, Rapper, Visual, Face of the Group |
Jung Chae-yeon (born December 1, 1997), better known by the mononym Chaeyeon, is a South Korean singer and actress. She is best known for being a member of the South Korean girl group DIA, and for finishing 7th in the survival...See Full Profile

Yoojung
Choi Yoo-jung
Height | 5'3" (159cm) |
Date of Birth | 19 years old, born November 12, 1999 |
Blood Type | 0 |
Position | Main Rapper, Lead Vocalist, Main Dancer, Center |
Yoojung was a member of the girl group IOI, currently she's part of the girl group WEKI MEKI, she ranked 3 on Produce 101.
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Doyeon
Kim Do-yeon
Height | 5'8" (173cm) |
Date of Birth | 19 years old, born December 4, 1999 |
Blood Type | 0 |
Position | Visual, Lead Dancer, Vocal |
Doyeon was a member of the girl group IOI, currently she's part of the girl group WEKI MEKI, she ranked 8 on Produce 101.

Chungha
Kim Chan-mi
Height | 5'4" (161cm) |
Date of Birth | 23 years old, born February 9, 1996 |
Blood Type | B |
Kim Chanmi(김청하) known as Chungha (청하) is a Korean singer, who became well known after finishing rank 4 on the survival show Produce 101 and became part of the girl group I.O.I. She officially debuted as a solo artist on June...See Full Profile

Kyulkyung
Zhou Jieqiong
Height | 5'6" (166cm) |
Date of Birth | 20 years old, born December 16, 1998 |
Blood Type | 0 |
Position | Vocal |
Kyulkyung was a member of the girl group IOI, currently she's part of the girl group PRISTIN, she ranked 6 on Produce 101.

Somi
Jeon So-mi
Height | 5'6" (168cm) |
Date of Birth | 17 years old, born March 9, 2001 |
Blood Type | 0 |
Position | Vocal, Maknae |
Somi was a member of the girl group IOI, currently she's a solo actress, she ranked 1 on Produce 101 and was the maknae of IOI.
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