I.O.I Members Profile

아이오아이

I.O.I logo
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Tour Announced
Tour Announced
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Comeback Announced
Lineup Change
Apr 30, 2026
Name:
I.O.I
Aliases:
Ideal of Idol, IOI
Hangul:
아이오아이
Fandom:
Unannounced
Debuted On:
May 4, 2016
Ended On:
2017
Generation:
Gen 3 | 2012 - 2017
Composition:
Female
Last Comeback:
Apr 19, 2026
Event Announced:
May 31, 2026
About I.O.I
I.O.I was the Produce 101 project group that swept 2016 with breezy hits like “Very Very Very.” Though active for less than a year, the members’ success stories made the group a benchmark for survival-show fame.
Music Label
YMC Entertainment

Top Contributors

Fans helping keep I.O.I looking fresh.

Kpoppa

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Latest updates
What changed recently
View all
Tour Announced
Tour Announced
Tap to open this update and jump to the relevant section.
Comeback Announced
Lineup Change
Apr 30, 2026

I.O.I Members

I.O.I members are Nayoung, Chungha, Sejeong, Chaeyeon, Kyulkyung, Sohye, Yeonjung, Yoojung, Doyeon, Mina and Somi.

I.O.I lightstick

Lightstick

Member Ages
Avg Age27.7 years old
Oldest
Nayoung
Nayoung30 years old
Youngest
Somi
Somi25 years old
Avg Gap6.3 months
Next Birthday
Sohye
SohyeJul 1950 days away
Last Birthday
Somi
SomiMar 982 days ago
Member Heights
Tallest
Doyeon
Doyeon173 cm / 5ft 8in
Shortest
Yoojung
Yoojung157 cm / 5ft 2in
Avg Height166.1 cm / 5ft 5in
Avg Gap1.6 cm / 0.6 in
Nayoung
Nayoung
VS
Chungha
Chungha