I.O.I Members Profile (Updated!) - Kpop Profiles (2024)

I.O.I Members Profile: I.O.I Facts

I.O.I (Korean: 아이오아이) was a Korean girl group, formed by the survival show “Produce 101”. The group consisted of 11 members: Somi, Sejeong, Yoojung, Chungha, Sohye, Kyulkyung, Chaeyeon, Doyeon, Mina, Nayoung, Yeonjung. I.O.I debuted on May 4, 2016, under YMC Entertainment and CJ E&M. The group officially disbanded on January 29th, 2017.
On July 1, 2019, it was announced that I.O.I will have a reunion in October 2019 with 9 members. Somi and Yeonjung would not be a part of the reunion due to their scheduled activities. For the latest activities, I.O.I was signed under Swing Entertainment and Studio Blu.

I.O.I Fandom Name: –
I.O.I Official Fan Color: –

I.O.I Offiial Accounts:
Twitter: @ioi_official_
Instagram: @ioi_official_ig
Fan Cafe: IOIofficial

I.O.I Members Profile:
Nayoung (Rank: 10)

Stage Name: Nayoung (나영)
Birth Name: Lim Na Young (임나영)
Position: Leader, Main Rapper, Lead Dancer, Vocalist
Birthday: December 18, 1995
Zodiac Sign: Sagittarius
Nationality: Korean
Height: 171 cm (5’7″)
Weight: 50 kg (110 lbs)
Blood Type: O
Sub-Unit: I.O.I Sub Unit
Instagram:@nayoung_lim
TikTok:@nayoung_lim95
Fan Cafe:limnayoung.official

Nayoung facts:
– Her nicknameis “Stone Nayoung” (SNL Korea 7 – May 7, 2016)
– She has an older brother.
– Hobby: Listening to Music, Manicure, Drawing
– Education: Dongduk Girls University
– Specialty: Dancing
– Favorite Group: Girls’ Generation
– Role Model: Suzy, Uee, Angel Haze
– Strength: Calm, Careful, Respectful
– Weaknesses: Too Serious
– She’s currently a member of the girl group Pristin.
– Nayoung appeared in Troy’s “Why Are We?” MV.
– She was a cameo in the drama “Entourage” together with Kim Chungha.
– Motto: If you do it, it works out.
– Life Goal: Not just me, but everybody be happy.
– Role Model: Suzy, Uee, Angel Haze
– Trainee Period: 4 years 7 months
– Company: Pledis (when she was a PD101 contestant); as of May 24, 2019 her contract with Pledis was terminated
– Currently in: she was a member of Pristin, but as of May 24, 2019 Pristin disbanded
– In August 2019 she signed with Sublime Artist Agency.
Show more Nayoung fun facts…

Chungha (Rank: 4)

Stage Name: Chungha (청하)
Birth Name: Kim Chan-mi (김찬미)
Position: Main Dancer, Lead Vocalist, Rapper
Birthday: February 9, 1996
Zodiac Sign: Aquarius
Nationality: Korean
Height: 161 cm (5’3″)
Weight: 44 kg (97 lbs)
Blood Type:B
Sub-Unit: I.O.I Sub Unit
Instagram: @chungha_official
TikTok:@official_chungha

Chungha facts:
– Her nickname is “Alcohol” – Chungha is the name of an alcohol drink brand. (SNL Korea 7 – May 7, 2016)
– Chungha is a former JYP trainee.
– Hobby: Watching movies alone
– Education: Sejong University
– She can speak Korean and English.
– Specialty: Choreographs, Dancing
– Chungha is brave as seen on their show where they go to many abandoned/haunted places.
– Trainee Period: 3 years 3 months
– Chungha appeared in Pentagon’s “Pretty Pretty” MV.
– She was a cameo in the drama “Entourage” together with Nayoung.
– Chungha sang “Pit A Pat”, Strong Woman Do Bong Soon OST.
– Chungha debuted as a solo artist with “Why Don’t You Know”.
– Chungha lived in Dallas, Texas for 7/8 years.
– She revealed on “Hit The Stage” that she almost quit dancing due to financial issues but she asked her family to allow her to continue as she was confident in it.
– Company: M&H Entertainment
– Currently a solo artist: Kim Chungha
Show more Kim Chungha fun facts…

Sejeong (Rank: 2)

Stage Name: Sejeong (세정)
Birth Name: Kim Se Jeong (김세정)
Position: Main Vocalist
Birthday: August 28, 1996
Zodiac Sign: Virgo
Nationality: Korean
Height: 164 cm (5’5″)
Weight: 48 kg (105 lbs)
Blood Type: AB
Instagram:@clean_0828/@official_kimsejeong
Youtube:OFFICIAL KIMSEJEONG
Twitter:@0828_kimsejeong
Weibo:KIMSEJEONG_金世正

Sejeong facts:
– She was born in Jeonju, South Korea.
– She has an older brother.
– Her nickname is “Uncle”. (SNL Korea 7 – May 7, 2016)
– Hobby: Painting, Re-watching movies
– Education: Indeogwon High School
– Specialty: Singing ballads
– She participated in Kpop Star Season (16 years old).
– Weakness: dancing (or rather, she is not good at memorizing choreo/things)
– Sejeong had a cameo appearance on KBS’s web drama ‘Sound of Heart’ (2016).
– Sejeong is acting as the lead actress in the drama called “School 2017”.
– She was as host of the show “Talents for Sale” in 2016 and was named a permanent MC for the show “Get it Beauty” in January 2017.
– She gained a lot of popularity in variety shows for her brilliant personality and friendliness. She had variety shows appearances in TV programs like The Law of the Jungle, Boat Horn Clenched, Mr. Baek The Homemade Food Master 2, (KBS) Immortal Songs 2 , Yoo Hee Yeol’s Sketchbook , (SBS) Flower Crew, (MBC) King of Masked Singer, (KBS) Singing Battle,(KBS) Boom Shakalaka and more.
– Her song “Flower Road” (produced by Zico) managed to reach # 1 on the Korean charts. She is the fastest soloist to win a musical show (Show Champion).
– On January 12, 2017, Sejeong released the song “If Only” for the OST of the Korean drama “The Legend of the Blue Sea”.
– Sejeong was in a Lotte Water Park CF with Astro’s Eunwoo.
– Trainee Period: 1 year 11 months
– Company: Jellyfish Entertainment
– Former Group: gugudan / gu9udan
Show more Sejeong fun facts…

Chaeyeon (Rank: 7)

Stage Name: Chaeyeon (채연)
Birth Name: Jung Chae Yeon (정채연)
Position: Vocalist, Visual
Date of Birth: December 1, 1997
Zodiac Sign: Sagittarius
Nationality: Korean
Height: 166 cm (5’5″)
Weight: 49 kg (108 lbs)
Blood Type: A
Instagram: @j_chaeyeoni

Chaeyeon facts:
– She has an older sister.
– Her nickname is “Daeng (Clueless)”. (SNL Korea 7 – May 7, 2016)
– Hobby: Mobile Games, Movies
– Specialty: Dance, Aegyo, Skating
– She was born in Jorye-dong, Suncheon-si, Jeollanam-do, South Korea
– Education: School of Performing Arts Seoul
– She debuted on 2015 as a member of the girl group DIA. She temporarily withdrew from the group to join in the program Produce 101 as a trainee and returned after the I.O.I’s disbandment.
– In December 2016, she was cast in the science fiction web drama “109 Strange Things”.
– She was featured in SBS’s romantic fantasy drama “Reunited Worlds”.
– Chaeyeon acted as main cast on a web drama called “I am” (2017).
– She was revealed as the new face of jewelry brand Lamucha.
– Trainee Period: 8 months
– Company: MBK Entertainment
– Current Group: DIA
Show more Jung Chaeyeon fun facts…

Kyulkyung (a.k.a. Jieqiong a.k.a Pinky) (Rank: 6)

Stage Name: Kyulkyung (결경)
Birth Name: Zhou Jie Qiong (周洁琼)
Korean Name: Joo Kyulkyung (주결경
Position: Lead Dancer, Vocalist, Visual
Birthday: December 16, 1998
Zodiac Sign: Sagittarius
Nationality: Chinese
Height: 167 cm (5’5″)
Weight: 48 kg (105 lbs)
Blood Type: O
Sub-Unit: I.O.I Sub Unit
Instagram:@zhou_jieqiong1216
Weibo:周洁琼_OFFICIAL

Zhou facts:
– She introduces herself as: Kyeolkyung
– Her nickname is “Joo Jae Duk”. (SNL Korea 7 – May 7, 2016)
– Birthplace: Shanghai, China
– She has a little sister and a little brother.
– Hobby: Window shopping, searching beauty sites
– Education: Education: Shanghai Conservatory of Music; School of Performing Arts Seoul
– Specialty: Dance, Instruments (Pipa, Guitar)
– Strengths: Adapts faster than others
– Weaknesses: Thin Ears
– Favorite Group: Girls’ Generation, f(x), After School
– Role Model: Nana
– Trainee Period: 5 years 5 months
– The members said that “Kyulkyung” looks like an ostrich.
– Pinky is easily scared when having to go to abandoned/haunted places.
– Company: Pledis
– Currently in: she was a member of Pristin, but as of May 24, 2019 Pristin disbanded.
– Kyulkyung is a solo artist with activities in China, she debuted on September 9, 2018 with the title “Why”.
Show more Kyulkyung fun facts…

Sohye (Rank: 5)

Stage Name: Sohye (소혜)
Birth Name: Kim So Hye (김소혜)
Position: Vocalist, Rapper
Birthday: July 19, 1999
Zodiac Sign: Cancer
Nationality: Korean
Height: 166 cm (5’5”)
Weight: 48 kg (105 lbs)
Blood Type: A
Sub-Unit: I.O.I Sub Unit
Instagram: @s_sohye

Sohye facts:
– She has a younger brother.
– Her nickname is “Penguin”. (SNL Korea 7 – May 7, 2016)
– Hobby: pickup trash as she walks, penguin collector.
– Education: Kyunggi Girls’ High School
– Specialty: Ocarina, Volleyball
– Trainee Period: 1 year
– Specialty: Beatbox, Acting.
– Weakness: too emotional; she has changed, although while in I.O.I, she had low self-confidence.
– Sohye is easily scared when having to go to abandoned/haunted places.
– Role Model: Chun Woo Hee (actress)
– Sohye has her own cafe in Korea.
– Sohye was a host of Star Show 360 and currently hosts SBS Game Show and EBS2 English Lecture Program which teaches students English to prepare for the TOEIC exam.
– She acted in a short drama called “Poetic Story”.
– Sohye was a cameo is the web drama “Queen of Ring” and had the main role in the web drama “Unexpected Heroes”.
– In 2017, Sohye acted as the female lead in the KBS Drama Special “Kang Deoksun’s Love History”.
– Sohye also appeared in several music videos: The Ark – “The Light”, Jinlin Wang – “Goodbye School”, Ra.D – “Look Into Your Eyes”
– Company: Shark & Penguin Entertainment
– After I.O.I disbandment Sohye joined joined SBS Power FM Bae Sung-jae’s Ten Radio as a fixed member.
– She acted in the drama “Best Chicken” (2019).
– She’s currently an actress.
Show more Kim So Hye fun facts…

Yeonjung (Rank 11)

Stage Name: Yeonjung (연정)
Birth Name: Yu Yeon Jung (유연정)
Position: Main Vocalist
Birthday: August 3, 1999
Nationality: Korean
Zodiac Sign: Leo
Height: 168 cm (5’6″)
Weight: 42 kg (92 lbs)
Blood Type: A
Instagram:@uyj__0803

Yeonjung facts:
– Her nickname is “Cider Vocal”. (SNL Korea 7 – May 7, 2016)
– Hobby: Playing alone
– Birthplace: Seoul, South Korea
– Siblings: one older brother
– Education: Hanlim Multi Art School
– Trainee Period: 1 year 3 months
– Company: Starship Entertainment
– Current Group: Cosmic Girls
Show more Yeonjung fun facts…

Yoojung (Rank: 3)

Stage Name: Yoojung (유정)
Birth Name: Choi Yoo Jung (최유정)
Position: Lead Rapper, Lead Dancer, Lead Vocalist
Birthday: November 12, 1999
Zodiac Sign: Scorpio
Nationality: Korean
Height: 157 cm (5’2″)
Weight: 44 kg (97 lbs)
Blood Type: O
Sub-Unit: I.O.I Sub Unit
Instagram:@dbeoddl__
TikTok:@wm_choiyoojung

Yoojung facts:
– Her nickname is “Wink Fairy”. (SNL Korea 7 – May 7, 2016)
– She doesn’t have any siblings.
– Hobby: Dancing, Painting, Photography
– Specialty: she raps and writes her own lyrics, covers boygroup’s choreography, grandmother/grandfather impersonation
– Education: Seoul Music High School
– Strengths: Cheerful, Love to smile, Sociable
– Specialty: Sleeps everywhere
– Weaknesses: Slow to open up to strangers, Sleeps everywhere
– Yoojung is easily scared when having to go to abandoned/haunted places.
– Yoojung can impersonate an orangutan.
– Favorite Group: 2NE1
– Role Model: Rihanna
– Motto: Don’t forget your roots, think of other first
– Trainee Period: 4 years 7 months
– Yoojung appeared in ASTRO’s ‘Breathless’ MV and ASTRO’s ‘To Be Continued’ drama.
– Yoojung and Doyeon were on the web-drama “Idol Fever”.
– Yoojung said that if she was a guy, she would date Chungha.
– Company: Fantagio
– Current group: Weki Meki
– Yoojung’s ideal type: Park Haejin, she especially loved him in “The Cheese in the Trap”; a man who is musician.
Show more Yoojung fun facts…

Mina (Rank: 9)

Stage Name: Mina (미나)
Birth Name: Kang Mi Na (강미나)
Position: Lead Dancer, Vocalist, Rapper
Birthday: December 4, 1999
Zodiac Sign: Sagittarius
Nationality: Korean
Height: 162 cm (5’4”)
Weight: 42 kg (92 lbs)
Blood Type: O
Instagram:@_happiness_o

Mina facts:
– Her nickname is “Juice Girl”. (SNL Korea 7 – May 7, 2016)
– Hobby: watching dramas, traveling alone and playing games
– Education: Seoul School of Performing Arts
– Specialty: Waacking Dance
– Mina and Doyeon have the exact same birthday (day, month, year).
– Trainee Period: 1 year 1 month
– Company: Jellyfish Entertainment
– Former Groups: gugudan / gu9udan, Oguogu
Show more Mina fun facts…

Doyeon (Rank: 8)

Stage Name: Doyeon (도연)
Birth Name: Kim Do Yeon (김도연)
Position: Vocalist, Visual
Birthday: December 4, 1999
Zodiac Sign: Sagittarius
Nationality: Korean
Height: 173 cm (5’8″)
Weight: 50 kg (110 lbs)
Blood Type: O
Sub-Unit: I.O.I Sub Unit
Instagram:@lafilledhiver_

Doyeon facts:
– She has an older sister and an older brother.
– Her nickname is “Little Jun Ji Hyun”. (SNL Korea 7 – May 7, 2016)
– Hobby: Watching Movies, Listening to Music
– Education: Wonju, Gangwondo, South Korea
– Specialty: Dancing, Reaction queen
– Weakness: Reaction queen
– Doyeon is brave as seen on their show where they go to many abandoned/haunted places.
– Mina and Doyeon have the exact same birthday (day, month, year).
– Doyeon and Yoojung were on the web-drama “Idol Fever”.
– Trainee Period: 1 year 5 months
– Company: Fantagio Entertainment
– Current group: Weki Meki
– Doyeon’s ideal type: Park Seo-joon. She said she really loved his character in “She Was Pretty”.
Show more Doyeon fun facts…

Somi (Rank: 1)

Stage Name: Somi (소미)
Birth Name: Ennik Somi Douma {Jeon So Mi (전소미)}
Position: Lead Dancer, Lead Vocalist, Rapper, Face of the Group, Center, Maknae
Birthday: March 9, 2001
Zodiac Sign: Pisces
Nationality: Korean-Canadian
Height: 172 cm (5’8’’)
Weight: 48 kg (105 lbs)
Blood Type: O
Sub-Unit: I.O.I Sub Unit
Instagram:somsomi0309
Twitter:somi_official_
Facebook:SOMI (전소미)
YouTube:JEON SOMI (전소미)
TikTok: somi_official_

Somi facts:
– She has a little sister.
– Her nickname is “Vitamin”. (SNL Korea 7 – May 7, 2016)
– She was born to Matthew and Sunhee, a Dutch-Canadian father and a Korean mother.
– Hobby: Collecting Socks, Shopping, Walking Alone, Search for Good Music, Search for good restaurants
– Education: Seoyun Middle School, Hanlim Multi Arts High School
– Specialty: Taekwondo, Caricatures, cooking
– Trainee Period: 2 years
– Somi can do an impersonation of an eating giraffe.
– Somi is easily scared when having to go to abandoned/haunted places.
– She holds 3rd degree black belt in Taekwondo.
– One of her childhood dreams was to be a stewardess.
– Somi appeared in GOT7’s “Stop stop It” MV.
– Somi also appeared in Up10tion’s “White Night” MV.
– Somi is huge fan of 2NE1, and her role model is Minzy (Unnies Slam Dunk season 2 ep 1)
– Somi was a co-host for “Idol Likes Battle” ep. 3 (guests GOT7).
– Former Contestant of SIXTEEN
– Jeon Somi and her younger sister Evelyn both played daughters of the character Mak Soon, the youngest sister of the main lead (Hwang Jung Min).
– Somi was meant to be a part of Twice and is close friends with Chaeyoung and the other members of Twice.
– Somi is close friends with GFRIEND’s Umji, Wanna One’s Daehwi and also friends with Park Woojin and Kim Donghyun who were former JYP trainees.
– Company: when she was in I.O.I she was under JYP Entertainment, but meanwhile she left JYPE
– After I.O.I’s disbandment she joined different variety shows, such as Sister’s Slam Dunk Season 2.
– Somi was, alongside other 6 female idols, in “Idol Drama Operation Team” tv program. Theycreated a 7 members girl group, calledGirls Next Door,whichdebutedon July 14, 2017.
– On August 20, 2018, Somi left JYPE.
– On September 23, Jeon Somi has signed a contract with The Black Label (a subsidiary label of YG Entertainment headed by Teddy).
– On June 13, 2019 she debuted as a soloist with the single “Birthday”.
Show more Jeon Somi fun facts…

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Related: I.O.I Sub Unit

You may also like: I.O.I: Where are they now?
Poll: Who were your PRODUCE 101 final picks?
I.O.I Discography
I.O.I: Who is Who?
I.O.I Awards History

(Special thanks to 101, Yanti, Ei Phyo, blxnicotine, yk_hero, bella cha, little aroha, Abhilash Menon, Kei An Lendio, Ranceia, Joy^Yuto, ParkXiyeonisLIFE, princess diana, Ayano Aishi, Jin’s my husband, wife & son, Ariiq Akbar 21, Nane, Crimson Riot, Kpopaddict, Angela Faith Bascos, Kathy101, Chu ♪♫•*¨*•.¸¸♥, cutiebebhe, Hansel A, Kimmy, Samantha Kwok, SupportIOIMAMA2017, SorryForAlwaysCommenting, ioifan, Hoshi, Kang Sejeong, zoolgi, Sarah Brand, Dancing Colors, M, haechanical, Blossom, ChuuPenguin, OhItsLizzie, maria varga, Cat L, qwertasdfgzxcvb, Hanna, Swaggy Potato, ReVe, Nathan, katz, Tom)

Last Korean comeback:

Who is yourI.O.Ibias? Do you know more facts about them? Feel free to comment below. It can help new fans find more info about them. 🙂