Kep1er (/ˈkɛplər/; KR:케플러 ; JP:ケプラー) formed by CJ ENM through the Mnet reality competition show Girls Planet 999 in 2021. The group is under WakeOne Entertainment and Klap Entertainment. The group consists of seven members: Kim Chae-hyun (김채현), Huening Bahiyyih (휴닝바히에), Choi Yu-jin (최유진), Kim Da-yeon (김다연), Seo Young-eun (서영은), Ezaki Hikaru (江崎 ひかる), and Shen Xiao Ting (沈小婷). Originally a nine-member group, former members Kang Ye-seo (강예서) and Sakamoto Mashiro (坂本 舞白) left the group in July 2024, but as of September 2024 they both debuted in the girl group MADEIN. Name meaning/Fandom name: 'Kep', which means catching dreams, and the number 1, which means the nine girls coming together as one to be the best. It is also a reference to the planet 'Kepler', the Kepler space telescope and inspired by German astronomer Johannes Kepler. Kep1er Official Fandom Name: Kep1ian (케플리안). They debuted on January 3, 2022 in Korea, with the mini album First Impact. Upon its release, the group received immediate commercial success, selling approximately 400,000 copies and peaking at number 1 on South Korea's Gaon Album Chart. In addition, both the EP and its lead single Wa Da Da charted on the Billboard Global 200 and World Digital Songs respectively. The early success subsequently hailed them as the New Wave of the Year at several awards ceremonies, including Asia Artist Awards and Seoul Music Awards. The group's Japanese debut single, Fly-Up, was released on September 7, 2022, under the Sony Music Entertainment Japan subsidiary Ariola Japan. Debuting at number two on Oricon Singles Chart and with over 100,000 unit sales, the single was certified gold by the Recording Industry Association of Japan (RIAJ). September 30, 2024, as part of the label reorganization of Swing Entertainment, Klap Entertainment has been co-managing the group alongside WakeOne Entertainment. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.