Related Information for Hyuna & HyunseungTrouble Maker (트러블메이커) is a South Korean co-ed sub-unit consisting of 4minute’s Kim HyunA (현아) & B2ST’s Jang Hyun Seung (장현승), also known as JS. The group’s debut single, Trouble Maker, peaked at #1 on GaOn, Korea’s official chart, and achieved a triple crown on MNet’s M! Countdown and one win on SBS’s Inkigayo and jTBC’s Music on Top respectively. read more