A.O.A, or "Ace of Angels," is a South Korean girl group formed by FNC Entertainment in 2012. The group debuted with the single "Elvis" and is known for its catchy music and vibrant performances. A.O.A originally started as a band but later transitioned into a dance-focused group, showcasing their versatility in both singing and choreography. The group gained popularity with hits like "Miniskirt" and "Like a Cat," which highlighted their unique concepts and strong visuals. Over the years, A.O.A has undergone several lineup changes, with members like Jimin, Seolhyun, and Chanmi becoming well-known figures in the K-pop industry.