Fromis 9 (Korean: 프로미스나인; stylized as fromis_9) is a South Korean girl group formed by CJ E&M through the 2017 reality show Idol School. The group is composed of eight members: Roh Ji-sun, Song Ha-young, Lee Sae-rom, Lee Chae-young, Lee Na-gyung, Park Ji-won, Lee Seo-yeon, and Baek Ji-heon.[3][4] Originally a nine-piece group, Jang Gyu-ri departed the group on July 31, 2022.
The group debuted on January 24, 2018, under Stone Music Entertainment with the release of their first extended play (EP), To. Heart.[5] In September 2018, it was confirmed that Fromis 9 would be managed by Off the Record Entertainment, a new label established by Stone Music.[6] As part of their transfer, Pledis Entertainment was in charge of creative direction and the production of the group's music.
The group was co-managed by Off the Record and Stone Music. Since August 16, 2021, as part of the label reorganization of Off the Record Entertainment, Pledis Entertainment is serving as the management company for the group.[7]
^Lee, Ha-na. "[신곡배달] 아홉 소녀들의 수줍은 고백···프로미스나인 'To. Heart'" [[New song delivery] 9 girls' shy confession... fromis_9's "To". Heart']. Naver (in Korean). Sedaily. Archived from the original on January 25, 2018. Retrieved January 24, 2018.
^Cite error: The named reference Moved was invoked but never defined (see the help page).
^"프로미스나인 소속사 이적 안내" [Notice of transfer to fromis_9 agency]. Pledis Entertainment. Archived from the original on August 16, 2021. Retrieved August 16, 2021.