Kim Ryeo-wook (born June 21, 1987), best known mononymously as Ryeowook, is a Korean singer-songwriter and occasional actor. He is one of the four lead vocalists of the super boy band Super Junior, and is also a member of Super Junior-K.R.Y and Super Junior-M, two subgroups that are branched out from the main group. Along with four other members of Super Junior, he is one of the first Korean artists to appear on Chinese postage stamps.
Kim Ryeowook was discovered through the CMB Youth ChinChin Festival in 2004 and signed a contract with SM Entertainment soon afterwards after impressing judges with his singing talent. Trained in areas of singing, dancing, and acting, Ryeowook placed particular efforts into his vocal training and music composition as he was most concerned in those areas. He plays piano, and will play the accompaniment for other members solos every so often during concerts.
Ryeowook was the last to join Super Junior before Kyuhyun, only joining the group several weeks before their official debut in 2005. Having undergone only two months of training under SM Entertainment, Ryeowook's late addition was rumored to be a replacement of a previous SM trainee that was supposed to debut as a member of Super Junior 05, the first generation of Super Junior.
In late 2006, Ryeowook became a member of Super Junior's first subgroup, Super Junior-K.R.Y. The trio debuted on November 5, 2006 on KBS's Music Bank. In early 2008, Ryeowook was placed in another Super Junior subgroup, Super Junior-M. The subgroup specializes in singing Mandarin songs, including Mandarin versions of Super Junior's Korean songs, bringing the K-pop influence into the Chinese music industry. Super Junior-M is the first international music group in the Chinese music industry to have members of both Chinese and Korean descent.
Ryeowook made his acting debut in the film, Attack on the Pin-Up Boys, a high-school comedy/mystery film, in which he plays the eccentric vice president of the student council. Ryeowook's acting gained positive feedback from critics and he was nominated Best Supporting Actor and Best Comedic Performance at the Korean Movie Awards.
Ryeowook successfully composed a song by himself titled "Memories in Breeze"
Ryeowook's first composition to be officially released was "Love U More", found on the repackaged Sorry, Sorry Version C. He co-wrote the lyrics with fellow Super Junior member Sungmin. Ryeowook is also credited for musical arrangement in the liner notes of the album. Sumber : Wikipedia