), is a South Korean R&B singer and record producer.
He initially attended the Sun Moon University, under the journalism major but dropped out.
Wheesung subsequently attended the Gukje Digital University and Kyung Hee University's Graduate School of Communication.
He left after the band's first album debut, citing musical differences between himself and the other members of the band.After being released from A4, he signed onto M Boat, a former sister company to YG Entertainment.He underwent a few years of vocal training under the label and released his first solo album Like A Movie in 2002.The album became very popular after receiving praise from many well-known artists, including Seo Taiji and Shin Seung Hun. It proved to be as popular as his first, making him the best selling artist of 2003 in Korea.Unlike his debut album, It's Real wasn't restricted to R&B and it included different musical elements like pop and hip-hop.
Wheesung left YG Entertainment after his contract expired in March 2006.He signed a new contract that is reportedly worth 1.5 million won with his new company Orange Shock Agency. In late 2008, Wheesung has collaborated once again with Lee Hyori who featured as his girlfriend in his music video of "별이 지다.." (Fading Star) in the "With All My Heart and Soul" album.In 2009, Wheesung seeks help from producer Lee Hyun-do, they will collaborate to produce the new album which the release date has been set in August 2009.In April 2009, Wheesung is the MC/host of a new Mnet TV show called "Pre Star-1 Show.This show gives opportunities for new talented singers to introduce themselves, a platform for them to reach out to more fans.Every month about nine or ten teams will be introduced on and the team which receives most response from the netizens will be chosen onto the show.