Introduction

I.O.I (아이오아이) is a project girl group formed through Mnet's survival reality show Produce 101. Originally an eleven-member girl group, they debuted on May 4, 2016 with the mini album Chrysalis. They promoted for a year before disbanding in January 29, 2017.

The group was planning to have a reunion in December 2019 with nine members under Studio Blu but due to four members being unable to participate, the reunion was virtually cancelled.

In November 2015, Mnet announced their new survival show that would bring together 101 trainees from 46 entertainment companies to form a unit girl group with 11 members chosen by the viewers, which was called Produce 101. The show premiered on January 21, 2016, and the live finale was broadcast on April 1, 2016, with the 11 winners becoming a girl group. The group's debut line included Zhou Jie Qiong and Lim Na Young from Pledis Entertainment, Kim Chung Ha from MNH Entertainment, Kim Se Jeong and Kang Mi Na from Jellyfish Entertainment, Choi Yoo Jung and Kim Do Yeon from Fantagio Music, Yoo Yeon Jung from Starship Entertainment, Kim So Hye from Redline Entertainment, Jung Chae Yeon from MBK Entertainment and Jeon So Mi from JYP Entertainment.

Supposedly, the day of the show's finale was when I.O.I was supposed to debut with "Crush" and begin activities, but Mnet and YMC Entertainment decided to postpone their debut so they can prepare the group with their concept and a new song with new choreography. On April 5, 2016, the song was released as a digital single, followed by its music video.

They debuted on May 4, 2016 with the EP Chrysalis and actively promoted as a whole and as a sub-unit for less than a year.

The group's concert titled Time Slip – I.O.I, which was held on January 20 to 22, 2017, marked their last group activity on stage. They officially disbanded at the end of January 2017 and returned to their respective agencies.

On May 4, 2021, the 5th anniversary of the group's debut, the group (except for Mina and Jieqiong) held a reunion livestream. Jieqiong managed to join the livestream via video calling.

Current state:
disbanded 
Jul 1, 2019-Oct 29, 2019
May 4, 2016-Jan 29, 2017
May 4, 2016-Jan 29, 2017
Debut:
Debut to 1st win:
104 days
Active years:
2016-2017
Country:
South Korea
Most popular member:
kpopping rank:
75th
logo
logo
lightstick
lightstick
9 awards
8 pics
83 videos
6 albums
49K viewed
97 added

Member's profiles

See pics for more Nayoung

Nayoung

Korean: 나영

Japanese: ナヨン

Birthday:
Age:
27 years old
Birthplace:
Seoul     South Korea
Height:
5'7" (171 cm)
Weight:
110.2 lbs (50 kg)
Zodiac-sign:
Blood type:
0
Position:
Leader, Main Rapper, Lead Dancer, Vocalist

See pics for more Chungha

Chungha

Korean: 청하

Japanese: チョンハ

Birthday:
Age:
27 years old
Birthplace:
Ulsan     South Korea
Height:
5'4" (161 cm)
Weight:
97 lbs (44 kg)
Zodiac-sign:
Blood type:
A
MBTI:
ISFJ
Position:
Main Dancer, Lead Vocalist, Rapper

See pics for more Sejeong

Sejeong

Korean: 세정

Japanese: セジョン

Birthday:
Age:
26 years old
Birthplace:
Gimje     South Korea
Height:
5'5" (164 cm)
Weight:
105.8 lbs (48 kg)
Zodiac-sign:
Blood type:
AB
Position:
Main Vocalist

See pics for more Chaeyeon

Chaeyeon

Korean: 채연

Japanese: チェヨン

Birthday:
Age:
25 years old
Birthplace:
Suncheon     South Korea
Height:
5'6" (166 cm)
Weight:
108 lbs (49 kg)
Zodiac-sign:
Blood type:
A
Position:
Vocalist, Visual

See pics for more Zhou Jie Qiong

Zhou Jie Qiong

Korean: 결경

Japanese: ギョルギョン

Birthday:
Age:
24 years old
Birthplace:
Taizhou, Zhejiang, Shanghai     China
Height:
5'5" (165 cm)
Weight:
103.6 lbs (47 kg)
Zodiac-sign:
Blood type:
0
Position:
Lead Dancer, Vocalist, Visual

See pics for more Sohye

Sohye

Korean: 소혜

Japanese: ソエ

Birthday:
Age:
23 years old
Birthplace:
Seoul     South Korea
Height:
5'4" (163 cm)
Weight:
105.8 lbs (48 kg)
Zodiac-sign:
Blood type:
A
Position:
Vocalist, Rapper

See pics for more Yeonjung

Yeonjung

Korean: 연정

Japanese: ヨンジョン

Birthday:
Age:
23 years old
Birthplace:
Gwangmyung, Gyeonggi Province     South Korea
Height:
5'6" (167 cm)
Weight:
114.6 lbs (52 kg)
Zodiac-sign:
Blood type:
A
MBTI:
ESTP
Position:
Main Vocalist

See pics for more Yoojung

Yoojung

Korean: 유정

Japanese: ユジュン

Birthday:
Age:
23 years old
Birthplace:
Guri, Gyeonggi     South Korea
Height:
5'2" (157 cm)
Weight:
97 lbs (44 kg)
Zodiac-sign:
Blood type:
0
MBTI:
ISFJ
Position:
Lead Rapper, Lead Dancer, Lead Vocalist

See pics for more Mina

Mina

Korean: 미나

Japanese: ミナ

Birthday:
Age:
23 years old
Birthplace:
Icheon     South Korea
Height:
5'5" (164 cm)
Weight:
105.8 lbs (48 kg)
Zodiac-sign:
Blood type:
0
Position:
Lead Dancer, Vocalist, Rapper

See pics for more Doyeon

Doyeon

Korean: 도연

Japanese: ドヨン

Birthday:
Age:
23 years old
Birthplace:
Gangwon     South Korea
Height:
5'8" (173 cm)
Weight:
110.2 lbs (50 kg)
Zodiac-sign:
Blood type:
0
MBTI:
ESFP
Position:
Vocalist, Visual

See pics for more SOMI

SOMI

Korean: 소미

Japanese: ソミ

Birthday:
Age:
22 years old
Birthplace:
Ontario     Canada
Height:
5'8" (172 cm)
Weight:
99.2 lbs (45 kg)
Zodiac-sign:
Blood type:
0
Position:
Lead Dancer, Lead Vocalist, Rapper, Face of the Group, Center, Maknae

Social data

Social history

Date Twitter Followers Spotify Followers
May 28,
2023
May 28, 2023
81,111
+0
1,317,494
+0
May 27,
2023
May 27, 2023
81,126
-10
1,317,052
+289
May 26,
2023
May 26, 2023
81,136
-13
1,316,763
+645
May 25,
2023
May 25, 2023
81,149
-13
1,316,118
+0
May 24,
2023
May 24, 2023
81,162
-9
1,316,118
+382
May 23,
2023
May 23, 2023
81,171
-12
1,315,736
+371
May 22,
2023
May 22, 2023
81,183
-12
1,315,365
+490
May 21,
2023
May 21, 2023
81,195
-14
1,314,875
+380
May 20,
2023
May 20, 2023
81,209
-5
1,314,495
+355
May 19,
2023
May 19, 2023
81,214
-8
1,314,140
+347
May 18,
2023
May 18, 2023
81,222
-9
1,313,793
+401
May 17,
2023
May 17, 2023
81,231
-4
1,313,392
+387
May 16,
2023
May 16, 2023
81,235
-14
1,313,005
+442
May 15,
2023
May 15, 2023
81,249
-9
1,312,563
+517
May 14,
2023
May 14, 2023
81,258
-7
1,312,046
+418
May 13,
2023
May 13, 2023
81,265
-9
1,311,628
+428
May 12,
2023
May 12, 2023
81,274
-6
1,311,200
+333
May 11,
2023
May 11, 2023
81,280
-3
1,310,867
+334
May 10,
2023
May 10, 2023
81,283
+2
1,310,533
+363
May 9,
2023
May 9, 2023
81,281
-1
1,310,170
+388
May 8,
2023
May 8, 2023
81,282
-8
1,309,782
+432
May 7,
2023
May 7, 2023
81,290
-6
1,309,350
+354
May 6,
2023
May 6, 2023
81,296
-10
1,308,996
+384
May 5,
2023
May 5, 2023
81,306
+1
1,308,612
+384

Music video views

1st
53,142,908
+10,534
2nd
14,128,661
+1,979
3rd
4,711,742
+1,796
4th
5,120,706
+803
5th
13,196,204
+345

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