AOA (an acronym for Ace of Angels; 에이오에이) is a South Korean girl group signed under FNC Entertainment. AOA debuted as an eight-member band that consists of Choa, Jimin, Yuna, Youkyung, Chanmi, Hyejeong, Seolhyun, and Mina. Currently, as of June 2017, AOA is promoting as a six-member idol group without former member Youkyung, who is only a part of AOA Black and without Choa due to her departure because of health reasons. The group officially debuted with their first single album Angels' Story, released on July 30th, 2012. On October 15th, 2016, Youkyung officially left the group. On June 30th, 2017, Choa officially left the group. The group released their first full-length album Angel's Knock on January 2nd, 2017. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.