| Birth name | Kim Ryeo-wook |
|---|---|
| Born | 21 June 1987 Incheon, South Korea |
| Origin | Seoul, South Korea |
| Genres | Pop, dance, R&B, Trot |
| Occupations | Singer-songwriter, dancer, occasional actor, Pianist |
| Instruments | Piano, singing, keyboard |
| Years active | 2005–present |
| Labels | SM Entertainment |
| Associated acts | SM Town, Super Junior, Super Junior-K.R.Y, Super Junior-M |