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Ready? Burn! Hello, we are JUST B!
(Ready? Burn! 안녕하세요, 저스트비입니다!)


JUST B (저스트비) is a six-member boy group under Bluedot Entertainment. They debuted on June 30, 2021 with their mini album Just Burn.



On January 30, 2021, it was announced all three remaining members of PlayM BOYS (Song Byeong Hee, Lim Jimin and Jeon Do Yum) moved to a new agency, Bluedot Entertainment.[2]

On the midnight of May 21, 2021, Bluedot released a coming soon teaser for their upcoming group JUST B.[3] Later that same day at 6PM KST, JUST B hosted a Twitter Spaces in which the six members (named L, J, D, B, S, and G) answered questions through live audio conversations.[4]

The following day, it was announced the group will make their official debut in the summer and that each member will be revealed starting on May 24.[5] On the midnight of May 24, Geonu was officially revealed as the group's first member, followed by Lim Jimin on the 25th, DY on the 26th, Sangwoo on the 27th, Bain on the 28th and JM (currently known as Siwoo) on the 29th.[6][7][8][9][10][11]

2021: Debut with Just Burn, "Just Beat"[]

On June 7, 2021, the group posted a photo teaser announcing their debut date to be June 30.[12] On June 13, the schedule for their debut mini album, Just Burn, was posted.[13]

On October 12, 2021, the group posted a promotion scheduler for their first single album "Just Beat", which was released on October 27.[14]

2022: Just Begun, = (Neun)[]

On March 23, 2022, JUST B posted a teaser for their second mini album, Just Begun, set to release on April 14.[15]

On October 26, 2022, JUST B dropped a teaser for their third mini album, = (Neun), set to release on November 16.[16]

2023: "JUST Be with you" project, "Camellia", ÷ (Nanugi), "I Luv You Merry Christmas"[]

On December 26, 2022, JUST B posted a teaser for their upcoming comeback.[17]

On February 7, 2023, JUST B unveiled a teaser for "Just Be With You Part.1", the first part of their "JUST Be with you" project, in collaboration with AleXa, set to be released on February 14.[18]

On April 3, the group released the first of a polaroid photo series, hinting at an upcoming comeback on April 12.[19] On April 9, their first digital single "Camellia" was announced.[20]

On August 17, JUST B dropped a coming soon teaser for their fourth mini album, set to be released in October.[21] On September 19, The name of the mini album was later revealed to be ÷ (Nanugi), set for release on October 9, 2023.[22]

On December 15, the group announced their first special single "I Luv You Merry Christmas", set to be released on December 22.[23]

2024: "Daddy's Girl", The CrewOne[]

On May 6, 2024, JUST B announced they would be releasing the English digital single "Daddy's Girl" in May.[24] The release date was later revealed to be May 22.[25]

In a joint announcement released on June 27, IST Entertainment and Bluedot Entertainment announced that ATBO and JUST B will be teaming up to create a project group, The CrewOne.[26]


Name Position(s) Year(s) active
Geonu (건우) Lead Vocalist 2021–present
Bain (배인) Main Vocalist, Lead Dancer 2021–present
Lim Jimin (임지민) Leader, Lead Vocalist, Lead Rapper, Lead Dancer, Visual, Center 2021–present
Siwoo (시우) Sub Vocalist, Sub Rapper, Visual 2021–present
DY (전도염) Main Rapper, Main Dancer, Sub Vocalist 2021–present
Sangwoo (상우) Lead Rapper, Lead Dancer, Sub Vocalist, Maknae 2021–present



Mini albums[]

Single albums[]

Digital singles[]

Special singles[]




Digital singles[]


  • JUST B 1st Mini Concert : JUST Be With You (2022)[27]

America tours[]

  • 2024 JUST B North & South America Tour (2024)[28]

Canada tours[]

Mexico tours[]

  • 2023 JUST Be With You in Mexico (2023)[31]

Concert participation[]


Radio shows[]

  • Sound K[37] (Arirang Radio, 2022) - guest
  • Super K-Pop[38] (Arirang Radio, 2022) - guest
  • Studio Moon Night[39] (Naver NOW., 2022) - guest (ep. 176)
  • Lunch Attack[40] (Naver NOW., 2022) - guest (ep. 702)


  • 2022-2023 Only B.Cut (2023)[41]

Awards and nominations[]

Year Recipent Award Won
Korea Model Awards
2022 JUST B Rising Star Awards Won[42]


  • Bain, Lim Jimin and DY are former members of PlayM BOYS.
  • Lim Jimin is a former contestant on The Fan.
  • Bain and DY are former contestants on Under Nineteen.
    • Bain was eliminated in the final episode while DY finished first place, thus becoming a member and the center of the project group 1THE9.
  • Geonu and JM are former contestants on I-LAND.
  • They debuted on the exact same day as OMEGA X.


Main article: JUST B/Gallery


  1. JUST B Official on Twitter (August 18, 2021)
  2. Blue Dot Entertainment on Twitter (January 30, 2021)
  3. JUST B Official on Twitter (May 21, 2021)
  4. JUST B Official on Twitter: [NOTICE] Just Hint Time! #TwitterSpaces with 'JUST B' 2021.5.21 6PM (KST) #AskJUSTB 해시태그를 포함해서 질문을 남겨주세요! #JUSTB 멤버들이 #트위터스페이스 통해 처음으로 목소리 들려드립니다! (May 21, 2021)
  5. (KR) Chosun: JUST B(저스트비), 올여름 6인조 신인 보이그룹 출격 [공식]
  6. JUST B Official on Twitter: JUST B Profile Image #JUSTB #저스트비 #GEONU #이건우 (May 24, 2021)
  7. JUST B Official on Twitter: JUST B Profile Image #JUSTB #저스트비 #LIMJIMIN #임지민 (May 25, 2021)
  8. JUST B Official on Twitter: JUST B Profile Image #JUSTB #저스트비 #DY #전도염 (May 26, 2021)
  9. JUST B Official on Twitter: JUST B Profile Image #JUSTB #저스트비 #SANGWOO #김상우 (May 27, 2021)
  10. JUST B Official on Twitter: JUST B Profile Image #JUSTB #저스트비 #배인 #Bain #송병희 (May 28, 2021)
  11. JUST B Official on Twitter: JUST B Profile Image #JUSTB #저스트비 #JM #추지민 (May 29, 2021)
  12. Soompi: New Boy Group JUST B With Former “I-LAND,” “Under 19,” And “The Fan” Contestants Announces Debut Date
  13. JUST B Official on Twitter: JUST B THE 1ST MINI ALBUM <JUST BURN> PROMOTION SCHEDULER 2021.06.30 6PM (KST) #JUSTB #저스트비 #JUST_BURN #20210630_6PM (June 13, 2021)
  14. Soompi: JUST B Announces 1st-Ever Comeback With “JUST BEAT”
  15. Soompi: JUST B Drops Intriguing 1st Teaser For April Comeback
  16. Soompi: JUST B Announces November Comeback Date With 1st Teaser For “= (NEUN)”
  17. JUST B on Twitter (December 26, 2022)
  18. Soompi: JUST B And AleXa Tease Special Valentine’s Day Collab
  19. (KR) Biz Enter: '12일 컴백' 저스트비, 새로운 스토리텔링 예고
  20. JUST B on Twitter (April 9, 2023)
  21. Soompi: JUST B Announces 1st Comeback In 11 Months With New Teaser
  22. JUST B on Twitter (September 19, 2023)
  23. JUST B on Twitter (December 15, 2023)
  24. JUST B on Twitter (May 6, 2024)
  25. JUST B on Twitter (May 13, 2024)
  26. Soompi: ATBO And JUST B Form Project Group Named The CrewOne
  27. (KR) Biz Enter: JUST B(저스트비), 7월 첫 단독 공연 티켓팅 시작
  28. JUST B on Twitter (January 4, 2024)
  29. JUST B on Twitter (June 22, 2022)
  30. JUST B on Twitter (July 5, 2022)
  31. JUST B on Twitter (December 23, 2022)
  32. @kconjapan on Twitter (March 27, 2023)
  33. @dreamconcertkr on Twitter (April 27, 2023)
  34. @kconusa on Twitter (June 23, 2023)
  35. @JNBCANADA on Twitter (July 2, 2023)
  36. Weverse: [Weverse Con Festival] 2024 Weverse Con Festival - 1st Lineup & 1 DAY PASS Earlybird Ticket Information
  37. (ENG) Invited Guests on Arirang Radio. Arirang Radio Twitter (2022-04-18). Retrieved on 2022-05-08.
  38. (ENG) Invited Guests on Arirang Radio. Arirang Radio Twitter (2022-04-25). Retrieved on 2022-05-08.
  39. (KOR) #studio문나잇 문대표(#마마무 #문별)의 이번주 캠핑 파트너는?!. Naver NOW. Twitter (2022-04-25). Retrieved on 2022-05-08.
  40. (KOR) #지오디 #점심어택 다음주 함께하는 분들. Naver NOW. Twitter (2022-05-01). Retrieved on 2022-05-08.
  41. JUST B on Twitter (June 30, 2023)
  42. (KR) News1: 저스트비, '대한민국 모델대상' 라이징스타상 수상

Official links[]