Also known as his stage name HUI
Born on August 28 1993 in South Korea
He's the Leader of Pentagon and also a main vocalist along with JinHo
In the first mission in the Program (Pentagon Maker) he got the highest score of all the members in his Pentagon Graph with an average score of 8.3
In the 9th week program, he has completed his Pentagon Graph and has become one of the official member of Pentagon
Won 1st Place Best Male Vocal at JYP 7th Audition Final Round in 2010
