Nicknamed Sacre Bleu, he is the leader of South Korean boy band 2AM and is also an actor, an MC, and an entertainer.
He was a trainee at JYP Entertainment, becoming the longest-serving JVP male trainee.
He and Sun-Ye of Wonder Girls were chosen for Park Jin Young's "99% Challenge Project."
He was the only son in his family.
He is a huge fan of Beyonce.