Popularly known by the stage name Woozi, he a leading vocalist for the K-pop supergroup Seventeen who also specializes in music production, composition, and lyrics.
He trained for five years in the Pledis Entertainment system. As a kid, he played the clarinet and band instruments while learning classical music.
He graduated from Hanlim Multi Arts High School in 2015. He previously performed with a group called Tempest.
His hometown is Busan, South Korea.
He performs alongside Wonwoo in the group Seventeen.