Group Name: AOA (에이오에이) Debut: July 30, 2012 Debut Single: Angel's Story Members: ChoA, Jimin, Yuna, Hyejeong, Mina, Seolhyun, Chanmi Former Members: Youkyung Formed under FNC Entertainment, AOA (Ace of Angels) is currently promoting as a seven member girl group consisting of members Choa, Jimin, Yuna, Hyejeong, Mina, Seolhyun, and Chanmi. In full AOA has eight members, but member Youkyung only promotes with AOA Black, the group's instrument-playing subunit. Going with the group's angel concept, Choa, Jimin, Yuna, Hyejeong, Mina, Seolhyun, and Chanmi are "full angels," while Youkyung is a half-angel-half-mortal as she only promotes with the group sometimes. AOA debuted with the track "Elvis" in 2012, but it wasn't until the 2013 release of their song "Confused" that the group really took off. Though they've never released a full-length album, AOA consistently releases hit singles, including "Miniskirt," "Short Hair," "Like a Cat," and "Heart Attack." In October of 2016, Youkyung's contract with FNC Entertainment officially ended, and she has since left the group.