Rapper and singer who became known as the leader of the first generation idol group, Sechs Kies. After the group ended in 2000, he launched a solo career in 2001 with his first single, "A-Ha".
He went school at Hawaiian Mission Academy with fellow Sechs Kies member Kang Sung-hun.
He has acted in films like Seventeen, Marrying a High-School Girl, and The Missing Lynx.
His mother, also a singer, was part of girl's group Lily Sisters. Both his great-uncle, Park Chung-hee, and his aunt, Park Geun-hye, have served as President of South Korea. He was married to Lee Soo Yeon from 2010 to 2012.