Kim Se-jeong

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Kim Se-jeong
Kim Se-jeong at Incheon Airport on January 6, 2019.png
Kim Se-jeong in January 2019
Native name
Kim Se-jeong

(1996-08-28) August 28, 1996 (age 22)
Gimje, South Korea
EducationHanyang Women's University
  • Singer
  • actress
Musical career
Years active2016–present
Associated acts
Korean name
Revised RomanizationGim Se-jeong
McCune–ReischauerKim Sechŏng

Kim Se-jeong (born August 28, 1996), better known by the mononym Sejeong, is a South Korean singer and actress. She is best known as the runner-up contestant in Produce 101, a former member of the girl group I.O.I, and as a member of Gugudan and its subgroup Gugudan Semina. She was a co-host of the variety show Talents for Sale in 2016 and played the leading role in the teen drama, School 2017.

Early life and education[edit]

Kim Se-jeong was born in Gimje, North Jeolla Province, but moved to Anyang, Gyeonggi where she stayed with her mother and older brother at her aunt's house. Her parents split when she was a child, leaving her mother to single-handedly raise her and her brother, and she has previously stated that she did not contact her father until her third year of middle school.[1][2] Kim is currently studying practical music in Hanyang Women's University.[3]



In 2012, Kim participated in the second season of competition television show K-pop Star 2 at the age of 16.[4][5] She did not make it through the second round ranking audition, but Yang Hyun-suk brought her back as a wildcard for the casting round, where she performed a duet of Taeyang's "I Need A Girl" with fellow contestant Jo Yoo-min.[6] Yang cast the both of them, grouping Kim with contestants Nicole Curry and Lee Soo-kyung for the final casting round. However, at the end of the round, she was eliminated from the competition.[7]

2016: Produce 101 and I.O.I[edit]

In January 2016, she represented Jellyfish Entertainment together with fellow trainees Kim Na-young and Kang Mi-na on the reality survival show Produce 101 for the chance to debut in a Mnet girl group.[8] All three were assigned to "Group A" in the first episode of the program, and she achieved the first-place ranking on several episodes,[9][10] earning the nickname "God Sejeong". The program came to an end on April 1, 2016, and the final line-up of I.O.I, made up of the top 11 poll-winners, was announced. Kim finished second overall, with 525,352 votes, becoming an official member of the girl group.[11] I.O.I promoted as a whole for events and advertising gigs.[12]

2017–present: Gugudan and solo career[edit]

Plans for Kim to host a new KBS show Talents for Sale alongside Kim Jong-kook, Lee Seo-jin and Noh Hong-chul were announced in April 2016.[13] She displayed a variety of talents on the show and earned the nickname 'Variety Cheat Key'.[14] On June 10, 2016, YMC Entertainment revealed that Kim would not be taking part in I.O.I's unit promotions but would instead return to her agency to debut and promote with its upcoming girl group.[15] On June 28, 2016, Kim officially debuted as a member of South Korean girl group Gugudan.[16] On November 23, 2016, Kim participated in Jellyfish Entertainment's music channel project Jelly Box and released the single "Flower Way" (Korean꽃길; RRKkotgil), produced by Zico, along with a music video.[17] The single topped seven major charts upon its release,[18] and Kim received her first music program trophy as a solo artist with "Flower Way" on the November 30th episode of Show Champion.[19]

On January 12, 2017, Kim released the song "If Only" for the OST of the Korean drama The Legend of the Blue Sea.[20] That month, she became a permanent MC for OnStyle's Get It Beauty.[21] In July 2017, she took on her first major acting role as the lead, Ra Eun-ho, in KBS2's teen drama School 2017.[22] Later that year, she sang "Star Blossom" for SM Station with NCT's Doyoung.[23] In September 2017, It was confirmed that Kim will be a fixed cast member in Netflix's variety show Busted!.[24]

In June 2018, a Gugudan subgroup named Gugudan Semina was formed with Sejeong and members Mina and Nayoung. They debuted on July 10, 2018.[25] In September 2018, Sejeong released the song "Lover" for the OST of the Korean drama Mr. Sunshine.[26]

In 2019, Sejeong was cast in the music romance drama I Wanna Hear Your Song.[27]



Title Year Peak chart position Sales Album

As lead artist
"Flower Way" (꽃길)
(Prod. by Zico of Block B)[A]
2016 2 Non-album single
"I Like You, I Don't" (좋아한다 안 한다)
(with Lee Tae-il of Block B)
2017 8 Non-album singles
"Star Blossom"
(with Doyoung of NCT)
SM Station Season 2
Soundtrack appearances
"If Only" (만에 하나) 2017 35 The Legend of the Blue Sea OST
"Lover" (정인 (情人)) 2018 89 N/A Mr. Sunshine OST
"—" denotes releases that did not chart or were not released in that region.


  1. ^ "Flower Way" was a promotional tool for Jellyfish Entertainment's digital music platform Jelly Box.




Year Title Role Network Notes Ref.
2016 The Sound of Your Heart Neighbor in Apt. 205 Naver TV Cast
Special appearance [33]
2017 School 2017 Ra Eun-ho KBS2 Lead role [22]
2019 I Wanna Hear Your Song Hong Yi-young KBS2 [27]

Variety show[edit]

Year Title Network Note / Role Ref.
2012–2013 K-pop Star 2 SBS Eliminated in casting audition round [4][5]
2016 Produce 101 Mnet Survival show that determined I.O.I members
Talents for Sale KBS2 Regular host [13]
2017 Law of the Jungle in Sumatra SBS Cast member [34][35]
Get It Beauty OnStyle Regular host [21][36]
2018 Baek Jong-won's Alley Restaurant SBS Special host (Episodes 1–10) [37][38]
Busted! Netflix Cast member [24]
Galileo: Awakened Universe tvN [39]

Awards and nominations[edit]

Year Award Category Nominated work Result Ref.
2016 15th KBS Entertainment Awards Rookie Variety Talents for Sale Nominated [citation needed]
2017 10th Korea Drama Awards Best New Actress (TV) School 2017 Nominated [40]
1st The Seoul Awards Best New Actress (Drama) Nominated [41]
Popularity Award, Actress N/A Won [42]
2017 Mnet Asian Music Awards Best Vocal Performance (Female Solo) "Flower Way" Nominated [43]
Qoo10 Song of the Year Nominated
9th Melon Music Awards Top 10 Artists N/A Nominated [44]
Hot Trend Award "Flower Way" Nominated [45]
"I Like You, I Don't" (with Taeil of Block B) Nominated
11th SBS Entertainment Awards Best Challenge Award Law of the Jungle in Sumatra Won [46]
31st KBS Drama Awards Best New Actress School 2017 Won [47]
Netizen Award Nominated [citation needed]
2018 54th Baeksang Arts Awards Best New Actress (TV) Nominated [48]


  1. ^ "'님과함께2' 김세정 "아버지 중3때 10년 만에 봤다" 가정사 공개" (in Korean). Nate. May 18, 2016. Retrieved June 18, 2016.
  2. ^ "김세정 "10년 만에 만난 아빠, 첫인사는 미안"(영상)". Dispatch (in Korean). May 24, 2016. Retrieved June 23, 2016.
  3. ^ "김세정, 알고보니 '엘리트 집안'...어머니 회계사ㆍ장학생". Sporbiz (in Korean). June 7, 2017.
  4. ^ a b "프로듀스101 순위1위 김세정, 3년전 'K팝스타2' 시절 어땠나". Asiae (in Korean). February 13, 2016. Retrieved June 23, 2016.
  5. ^ a b "프로듀스101 순위1위 김세정, 3년전 'K팝스타2' 시절 어땠나". The Chosun Ilbo (in Korean). February 20, 2016. Retrieved February 28, 2017.
  6. ^ "'K팝스타2' 조윤민·김세정, YG 동반 캐스팅..'깜짝'". The Chosun Ilbo (in Korean). January 6, 2013. Retrieved June 26, 2016.
  7. ^ "'케이팝 스타2' YG표 걸그룹, 혹평 속 니콜 커리만 YG행". The Fact (in Korean). 2013-01-20. Retrieved June 23, 2016.
  8. ^ "젤리피쉬가 애들잘뽑음(프로듀스101)". Nate (in Korean). February 13, 2016. Retrieved December 1, 2016.
  9. ^ "'프로듀스101' 김세정 1위 지켰다…2위 최유정·3위 강미나". The Chosun Ilbo. Retrieved June 26, 2016.
  10. ^ "프로듀스 101 김세정 1위, 눈물 소감…최고 시청률 경신". The Donga Ilbo. 2016-02-20. Retrieved June 23, 2016.
  11. ^ "101 girls down to 'I.O.I'". The Korea Times. April 4, 2016.
  12. ^ "[단독] "I.O.I 완전체 8월에도 쭉"…이벤트+CF로 뭉친다". (in Korean). 네이트뉴스. Retrieved August 9, 2016.
  13. ^ a b "김세정, '어서옵쇼' 고정 출연…지상파 예능 신고식텐아시아 | 텐아시아". TenAsia (in Korean). April 21, 2016. Retrieved June 23, 2016.
  14. ^ "'어서옵쇼' 김세정, 열일하는 '재능 치트키!'…랩부터 팔씨름까지 못하는 게 없는 요정!". Asia Today (in Korean). Retrieved August 9, 2016.
  15. ^ "I.O.I, 유닛 멤버 확정…'전소미-주결경-최유정 등 7인'(공식입장)". Star MBN (in Korean). June 10, 2016. Retrieved December 1, 2016.
  16. ^ "Kim Se-jeong, Kang Mi-na join Jellyfish's first girl group". Kpop Herald. June 6, 2016.
  17. ^ "I.O.I's Kim Se-jeong to finish track with Zico". Kpop Herald. November 16, 2016.
  18. ^ "'Flower Road' by I.O.I's Kim Se-jeong tops local chart". Kpop Herald. November 23, 2016.
  19. ^ "Gugudan′s Kim Se Jeong Wins First Music Program as Solo Artist". enewsWorld. Retrieved December 1, 2016.
  20. ^ "구구단 김세정 측 "'푸른바다' OST '만에하나' 참여 확정"(공식)". Newsen (in Korean). January 5, 2017. Retrieved February 28, 2017.
  21. ^ a b "구구단 세정, '겟잇뷰티' 고정 MC로 발탁". 10Asia (in Korean). January 20, 2017. Retrieved January 21, 2017.
  22. ^ a b "Kim Se-jung confirms role in 'School 2017'". Kpop Herald. June 6, 2017.
  23. ^ "NCT's Doyoung and gugudan's Kim Sejeong Duet on Romantic 'Star Blossom'". Billboard. October 13, 2017. Retrieved October 17, 2017.
  24. ^ a b "Netflix announces star-studded reality show". Korea JoongAng Daily. April 5, 2018.
  25. ^ "Gugudan's 'Semina' holds dual meaning". Kpop Herald. July 4, 2018.
  26. ^ "Sejeong to release track for 'Mr. Sunshine'". Kpop Herald. September 13, 2018.
  27. ^ a b "[단독]연우진·김세정·송재림·지연, '너의 노래…' 주인공". Ilgan Sports (in Korean). April 2, 2019.
  28. ^ "Gaon Digital Chart". Gaon Chart (in Korean). Korea Music Content Industry Association. Retrieved February 9, 2017.
  29. ^ Total Download sales for "Flower Way":
  30. ^ Total Download sales for "I Like You, I Don't":
  31. ^ Cumulative sales for "Star Blossom":
  32. ^ Cumulative sales for "If Only":
  33. ^ "I.O.I 김세정, '마음의 소리' 카메오 출연…이광수 옆집 새댁". The Chosun Ilbo (in Korean). November 2, 2016.
  34. ^ Jie Ye-eun (January 16, 2017). "Gugudan's Sejeong joins 'Law of the Jungle'". Kpop Herald. Retrieved February 28, 2017.
  35. ^ Kim Eun-ae (January 16, 2017). "구구단 김세정 '정글의 법칙' 첫 출연, 인도네시아 출국". Sports Today (in Korean). Retrieved February 2, 2017.
  36. ^ "Kim Se-jeong to leave 'Get It Beauty': report". Kpop Herald. July 9, 2017.
  37. ^ Park Seul-gi (January 6, 2018). "['골목식당'첫방] 백종원의 본격 골목 상권 살리기(feat.강력해진 독설)". TenAsia (in Korean). Retrieved March 23, 2018.
  38. ^ Son Jae-eun (January 6, 2018). "[스브스夜] 골목식당 김세정, 백종원 주니어의 활약 (feat 고재근 남창희)". SBS News (in Korean). Retrieved March 23, 2018.
  39. ^ "[SBS Star] gugudan SEJEONG to Explore Mars with Kim Byung-man!". SBS News. May 10, 2018.
  40. ^ "2017 코리아드라마어워즈(KDA) 최종 후보작 공개...한석규VS김상중VS차인표VS김영철VS최민수". Seoul Economic Daily (in Korean). September 27, 2017.
  41. ^ "'제 1회 서울어워즈', 드라마·영화 각 부문별 후보공개[공식]". Sports Donga (in Korean). Retrieved September 27, 2017.
  42. ^ "Gugudan's Sejeong wins Popularity Award at The Seoul Awards". Kpop Herald. October 29, 2017.
  43. ^ "2017 MAMA Nominations: BTS, EXO, Heize, IU, Seventeen, TWICE, & Wanna One Receive Top Recognition". Billboard. October 20, 2017.
  44. ^ "2017 Top 10 Artists". Melon. Archived from the original on June 9, 2017. Retrieved June 9, 2017.
  45. ^ "Melon Music Awards 2017: Winners of Top 10 Artists awards, nominees for category awards". International Business Times. November 17, 2017.
  46. ^ "'My Ugly Duckling' moms win grand prize at 2017 SBS Entertainment Awards". International Business Times. December 31, 2017.
  47. ^ "KBS Drama Awards 2017: Kim Young Chul, Chun Ho Jin share grand prize; complete winners list". International Business Times. January 1, 2018.
  48. ^ "제54회 백상예술대상, TV·영화 각 부문별 수상 후보자 공개". JTBC (in Korean). April 6, 2018.

External links[edit]