UN (also known as United N-generation) is a South Korean music group consisting of Choi Jung-won and Kim Jeong-hoon. Signing with Laful Entertainment, the duo debuted with United 'n' – Generation in 2000. Their song "For a Lifetime" from their first album became a hit and won them the SBS Gayo Daejeon award in 2001. They continued to achieve success with Traveling You (2001) gaining further momentum with singles “Wave” and “Gift”, releasing another further five albums between 2002 and 2006: Extreme Happiness (2002), Sweet & Strong (2003), Reunion (2004), Seventy Five Centimeter (2005), and Good bye & Best (2006) before disbanding upon the expiration of their contract. In 2023, the duo’s 2001 hit song “Wave” returned to the charts, landing at number 195.
