South Korean vocalist known for his performances with such bands as Sinawe, Butterfly Effect, The Ratios, and Art of Parties. He recorded his first solo album, N. Surf Part 1, in 2013.
He released Circus, his first album with Sinawe, in 1996.
He taught music at Seoul Arts College in 2010.
He married fashion designer Lee Juyoung.
He and Park Yoochun both became well-known South Korean singers.