Introduction to Ooon
Ooon is the leader of Halo. He is the main dancer and a sub-vocalist. He was a former Starship trainee, and was featured in a few of Sistar, K.Will, and MBLAQ's MVs.
Officially debuted in the group Halo with the song "Fever" in 2014. The song was written by JYJ's Jaejoon.
Official acting debut in KBS' "Cheer up". Also acted in "Hwarang".
Is the best at speaking english and doing aegyo in the group. Is very active and passionate about everything he does. Participated in "DREAM TEAM" and "We are the National Representatives" along with some idols like SNSD's Hyoyeon and Sunny,JBJ's Takada Kenta, Teen Top's Ricky and others . Was an MC many times. Collaborated with some famous singers (ex:Chungha) in different OST's.