Just B

Just B (Korean: 저스트비) is a South Korean boy band formed by Bluedot Entertainment. The group consists of six members: Geonu, Bain, Lim Ji-min, Siwoo (formerly known as JM), DY, and Sangwoo.

History

2019–2020: Pre-debut activities

DY and Bain were former contestants on MBC's survival show Under Nineteen.[unreliable source?] DY won first place and made his debut as the center of 1the9 while Bain was eliminated in the final episode.

Lim Ji-min was a former contestant on SBS' The Fan, but was eliminated. He made his solo debut with his single album Mini.

Geonu and Siwoo were former contestants on Mnet's survival show I-Land. Siwoo was eliminated in the first part, while Geonu was eliminated in the second part of episode 8.

2021–2022: Debut and early years

On June 30, Just B officially debuted with the release of their first extended play Just Burn and the lead single "Damage" was produced by Bang Yong-guk, a singer, rapper, songwriter and producer who was the leader of the boy group B.A.P.

On October 27, Just B returned with their first single album Just Beat and its lead single "Tick Tock".

On April 14, 2022, Just B released their second extended play Just Begun and its lead single "Re=load".

They released their third extended play = (Neun) and its lead single "Me=" on November 16, 2022.

2023–2024: JUST Be with you , ÷ (Nanugi) , formation of The CrewOne

On February 14, 2023, Just B released their first collaboration project with soloist AleXa titled "MBTI".

On April 12, 2023, Just B released their pre-release single "얼어있는 길거리에 잠시라도 따듯한 햇빛이 내리길" (Camelia) with lyrics penned by members DY and Sangwoo and composed by DY. Their fourth EP, ÷ (Nanugi), was released on October 9. The EP contains six tracks with the lead single "Medusa".

On June 27, 2024, the group collaborated with ATBO to form the project boy group The CrewOne. The project group then joined Mnet's competition program Road to Kingdom: Ace of Ace, which premiered on September 19, 2024. On November 29, IST Entertainment announced that The CrewOne's collaborative promotions would come to an end and the group disbanded.

2024–2025: Daddy's Girl , Still I Luv You , " , JUST ODD , Too Late, Snow Angel

In 2024 and 2025, Just B released a series of singles, starting with "Daddy's Girl", released on May 22, 2024, following the group's Just Be With You Tour, during which the song was performed for the first time.

On January 5, 2025, Just B released the single "Still I Luv You" and the following month, they released a two-song EP titled ", which featured the songs "한걸음만" and "Hoodie."

On March 28, 2025, Just B released an EP titled JUST ODD, featuring the lead single, "CHEST." This release was followed by the JUST ODD Tour, which came to parts of Asia and North America.

On August 24, 2025, Just B released a single titled "Too Late."

Just B released their 5th mini album Snow Angel on November 7, 2025. The first single, "Going South", was pre-released on October 24, 2025. The album was funded in collaboration with the group's fans as part of a crowdfunding campaign. Just B will embark on a Listening Tour across America in support of the album.

Members

Adapted from their Naver profile and official website.

• Geonu (건우)
• Bain (배인)
• Lim Ji-min (임지민)
• Siwoo (추시우)
• DY (전도염)
• Sangwoo (상우)

Personal lives of members

Bain came out in April 2025, saying, “I’m proud to be a part of the LGBTQ+ community — as a gay person.” This made him the first active male K-pop star to come out as gay publicly.

Discography

Extended plays

Single albums

Singles

Videography

Music videos

Awards and nominations