CLASS:y is a seven-member South Korean girl group formed on February 27, 2022 through MBC’s survival show My Teenage Girl and managed by M25. The lineup consists of 홍혜주, 김리원, 김선유, 명형서, 박보은, 원지민, and 윤채원. Built from a televised competition, CLASS:y entered the K-pop scene with a performance-first identity centered on synchronized choreography, polished stage presence, and a youthful image shaped by the idol-training process behind the project.
The group debuted in 2022 with its first release, arriving with the visibility generated by My Teenage Girl and the expectations that come with a survival-show lineup. CLASS:y’s music sits within contemporary K-pop and dance-pop, leaning toward high-energy songs and clean, modern production rather than a single fixed concept. That combination of a fast-track debut, a competition-based origin, and a stage-ready presentation has defined the group from the start. For listeners who follow newer Korean girl groups, CLASS:y is notable for turning reality-show recognition into a structured idol rollout built around precision, visuals, and consistent performance appeal.
