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I.O.I

I.O.I
I.O.I (아이오아이) was a South Korean Girl Group that debuted in 2016. They retired in 2017 with a 11 artist final line-up and held an Anniversary event in 2026.

They have 6 songs among the most popular in Korea.
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General Information

International Stage Name I.O.I
Domestic Stage Name 아이오아이
Debut Day 2016-05-16
Group retired 2017-01
Groups that are no longer releasing songs are considered retired regardless of their official status.
Anniversary or Special after disband 2026-05-19

Metrics and Achievements

Success
(max 5 stars)
Time since last release 4 Days (2026-06-23)
Time to Success 92 Days
PAKs 1 (7º)
Music Show Awards
2006+
11 (97°)
Most Awarded Song: Whatta Man
Annual Awards 2
Streaming Weekly Score
(Since 2010)
Score: 6790 (-)
Score w/o Collabs: 6701
First Places: 4 (57° - Biggest run: 3 weeks)
Times charted: 118
Times charted on top 10: 16
Songs charted: 15
Songs charted on top 10: 6
Most entries in a week: 6
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Most Streamed songs
(Circlechart)
 1. Very Very Very
 2. Suddenly
 3. Downpour
 4. Whatta Man
 5. Dream Girls
 6. When The Cherry Blossoms Fade
 7. Crush
 8. Hold On
 9. I Love You, I Remember You
 10. Knock Knock Knock
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Billboard weekly Score
(Since 2020)
Score: 83 (66°)
Times ranked: 2
Best place:: 136
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Physical Sales
(Circlechart)
286.039+ (All data available)
Most sold item MISS ME? with 106.439+ sold copies
Total Youtube Views 314.770.594+
Brand Physical Sales 578.298+
Brand Views 2.391.185.276+

Members

Nayoung Nayoung (나영)
Full Name: Im Nayoung
Date of Birth: 1995-12-18 (30 years)
Zodiac sign: Sagittarius
Country: South Korea
Active period: 2016-2017
Role: Leader,Vocal,Rapper,Dancer

Chaeyeon Chaeyeon (채연)
Full Name: Jung Chaeyeon
Date of Birth: 1997-12-01 (28 years)
Zodiac sign: Sagittarius
Country: South Korea
Active period: 2016-2017
Role: Vocal

CHOI YOOJUNG CHOI YOOJUNG (최유정)
Full Name: Choi Yoojung
Date of Birth: 1999-11-12 (26 years)
Zodiac sign: Scorpio
Country: South Korea
Active period: 2016-2017
Role: Vocal,Rapper,Dancer

Chung ha Chung ha (청하)
Full Name: Kim Chanmi
Date of Birth: 1996-02-09 (30 years)
Zodiac sign: Aquarius
Country: South Korea
Active period: 2016-2017
Role: Vocal,Rapper,Dancer

Doyeon Doyeon (도연)
Full Name: Kim Doyeon
Date of Birth: 1999-12-04 (26 years)
Zodiac sign: Sagittarius
Country: South Korea
Active period: 2016-2017
Role: Vocal

KIM SEJEONG KIM SEJEONG (김세정)
Full Name: Kim Sejeong
Date of Birth: 1996-08-28 (29 years)
Zodiac sign: Virgo
Country: South Korea
Active period: 2016-2017
Role: Vocal

Kyulkyung Kyulkyung (결경)
Full Name: Zhou Jieqiong
Date of Birth: 1998-12-16 (27 years)
Zodiac sign: Sagittarius
Country: China
Active period: 2016-2017
Role: Vocal,Dancer

Mina Mina (미나)
Full Name: Kang Mina
Date of Birth: 1999-12-04 (26 years)
Zodiac sign: Sagittarius
Country: South Korea
Active period: 2016-2017
Role: Vocal,Rapper,Dancer

Sohye Sohye (소혜)
Full Name: Kim Sohye
Date of Birth: 1999-07-19 (26 years)
Zodiac sign: Cancer
Country: South Korea
Active period: 2016-2017
Role: Vocal,Rapper

Somi Somi (전소미)
Full Name: Jeon Somi
Date of Birth: 2001-03-09 (25 years)
Zodiac sign: Pisces
Country: South Korea
Active period: 2016-2017
Role: Vocal,Rapper,Dancer,Face,Maknae

Yeonjung Yeonjung (연정)
Full Name: Yoo Yeonjung
Date of Birth: 1999-08-03 (26 years)
Zodiac sign: Leo
Country: South Korea
Active period: 2016-2017
Role: Vocal

Images


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