Formed by Mnet's survival show Girls Planet 999, Kep1er is a nine-member K-pop girl group comprised of Yujin, Yeseo, Xiaoting, Mashiro, Chaehyun, Dayeon, Hikaru, Huening Bahiyyih, and Youngeun. In their first two years together, the group released numerous singles and four EPs including 2023's Lovestruck!. They released their first full-lengths in 2024 with the Japanese Kep1going and the Korean Kep1going On.
With a name loosely based on German astronomer Johannes Kepler, Kep1er was formed in 2021 through the survival show Girls Planet 999. They debuted in January 2022 with th...