• Wanted to become a singer since he was in the middle school.
• Was a trainee for over a year prior to debut.
• Plays the piano.
• Eats more than any other member, but doesn't gain weight.
• Yunsung and Kyle are very outgoing and live, not because they just go out a lot, but also because when they are at the studio or in the company, they are very active on their practicing and dancing or even when they are working out, doing exercise and stuff like that.
• Yunsung's ideal type is the girl who is very cute and who can eat a lot (two bowls of rice).