Choi Hwee-Sung (born February 5, 1982 in Seoul, South Korea), better known by his stage name Wheesung (Korean: 휘성), is a South Korean R&B singer, song-writer, and record producer signed under the Orange Shock Agency label. He was formerly under M.Boat Entertainment Group & YG Entertainment label. He left both labels when his contract ended in March 2006. His music, at the beginning of his career, was heavily influenced by R&B but pop had become more evident in his music.

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