Kim Hyuna, born June 6, 1992 in Seoul and better known as HyunA, is a South Korean recording artist, dancer, songwriter and model active since 2007. She is the main rapper and singer of the K-Pop Korean girl group 4Minute, and part of the musical duo Trouble Maker. She’s also become notable for her successful solo career. I had actually seen HyunA before I knew who she was, after being forced to watch her sing a Gangnam Style duet with Psy about 1000 times.