Pop star most famous for his years as a member of the Korean boy band C-Clown, where he was known as Ray. With the group, he found chart success with the singles "Shaking Heart" and "Far Away ... Young Love."
He began training with Yedang Entertainment in 2010.
His band's third album, Shaking Heart (2013), reached number one on the Gaon Albums Chart.
He has two brothers.
He was bandmates with Christian Yu in C-Clown.