On 14 March, Eun-young was revealed a member and the leader of the group. She is the niece of Shin Ha-kyun, an actor known for his role in Welcome to Dongmakgol and Sympathy for Lady Vengeance.[6] Hye-ran was revealed on 17 March and gained attention because of her resemblance to singer Son Dambi and old dance rehearsal videos that led to her name being feature on video sites like M. Goon.[7] Ye-jin became the third member to be revealed. She also gained attention because of her past as she was ‘Miss Seattle’ at the Miss Korea competition and her resemblance to actress Kim Sa-rang.[8] Seo-a became the fourth member of the group.