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IOI

Introduction to IOI

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

Mina

Kang Mina

Height	5'5" (165cm)
Date of Birth	20 years old, born December 4, 1999
Blood Type	0
Position	Main Rapper, Vocalist

Kang Mi-na (강미나) is the main rapper, main dancer, vocalist, and maknae of the girl group Gugudan under Jellyfish Entertainment. In the group, she represents the number 9. Mina was first known from appearing and competing...See Full Profile

Yeonjung

Yoo Yeonjung

Height	5'6" (167cm)
Date of Birth	20 years old, born August 3, 1999
Blood Type	A
Position	Main Vocalist, Maknae

Yu Yeonjung (유연정) is the Main Vocalist and Youngest Member of the girl group Cosmic Girls under Starship Entertainment. She first debuted as member of the girl group IOI, formed through the tv show "Produce 101".

Sejeong

Kim Sejeong

Height	5'5" (164cm)
Date of Birth	23 years old, born August 28, 1996
Blood Type	AB
Position	Main Vocalist

Kim Se-jeong (김세정) is a South Korean Singer and Actress under Jellyfish Entertainment. Sejeong is the main vocalist and face of the girl group Gugudan and represents the number 3. Sejeong first rose to fame upon appearing...See Full Profile

Chaeyeon

Jung Chae Yeon

Height	5'6" (166cm)
Date of Birth	22 years old, born December 1, 1997
Blood Type	A
Position	Vocalist, Rapper, Visual, Face of the Group

Jung Chae Yeon (정채연) is a South Korean Singer and Actress under MBK Entertainment. She is currently the Lead Dancer, Visual, and Face of the girl group DIA. Chaeyeon rose to fame from appearing in the hit survival show Produce...See Full Profile

Yoojung

Choi Yoo-jung

Height	5'3" (159cm)
Date of Birth	20 years old, born November 12, 1999
Blood Type	0
Position	Main Rapper, Lead Vocalist, Main Dancer, Center

Choi Yoo-jung (최유정) is the main rapper, main dancer, main rapper, main dancer, lead vocalist, and face of the group Weki Meki under Fantagio Entertainment. She was first known for appearing and ranking third on the hit survival...See Full Profile

Doyeon

Kim Do-yeon

Height	5'8" (173cm)
Date of Birth	20 years old, born December 4, 1999
Blood Type	0
Position	Visual, Lead Dancer, Vocal

Kim Do-yeon (김도연) is the Lead Dancer, Lead Vocalist, Visual, and Center of the girl group Weki Meki under Fantagio Entertainment. She was first known for competing in the hit survival show Produce 101 where she qualified...See Full Profile

Chungha

Kim Chungha

Height	5'4" (161cm)
Date of Birth	23 years old, born February 9, 1996
Blood Type	B

Chungha was born as Kim Chanmi but later legally changed her name to Kim Chungha. She 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...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	18 years old, born March 9, 2001
Blood Type	0
Position	Vocal, Maknae

SOMI is a Korean soloist who became well known after competing on the survival shows SIXTEEN & ranking 1st in Produce 101. She was a member of the girl group IOI and was the maknae. She is currently a soloist and actress....See Full Profile

Sohye

Kim So Hye

Height	5'4" (163cm)
Date of Birth	20 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.

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

Lim Na Young (임나영) was the leader of the now-disbanded girl group Pristin under Pledis Entertainment. Nayoung was first known for appearing in the hit survival show Produce 101 where she ranked 10th place on the final episode,...See Full Profile