Legal name: 김현아
Kim Hyuna (Hangul: 김현아; born June 6, 1992), better known by the mononym Hyuna, stylized as HyunA, is a South Korean singer, dancer, songwriter and model. She is a singer of the Korean girl group, 4Minute, as well as one-half of the musical duo, Trouble Maker, and has also led a successful solo career.
Hyuna first rose to fame in the Korean girl group Wonder Girls, before she left in 2007. In 2008, she signed with Cube Entertainment and subsequently debuted with 4Minute a year later. Their debut single, "Hot Issue," went on to sell 4 million copies. She also became notable for her solo career, with her debut single, "Change", reaching sales of over 2 million copies. She is also well known for her appearance in Psy's worldwide hit, "Gangnam Style", which also led to a successful duet rendition of the song. She describes her solo career as "performance-oriented music."