

Introduction
Kim Sung-won (born February 21, 1984), better known by his stage name Sleepy (Hangul: 슬리피), is a South Korean rapper and a television personality. He is a member of the hip hop boy duo Untouchable. He released his solo debut single, "Cool Night", on June 16, 2015. He became a household name after appearing on reality TV shows like Real Men, I Live Alone, Law of the Jungle, and We Got Married.
TS Entertainment lawsuit
On September 14, 2019, it was revealed that Sleepy had filed a lawsuit to terminate his contract with TS Entertainment, citing lack of trust after they refused to show him payment documents and a physical copy of his contract.Sleepy also said that he did not receive any payment for his activities until 10 years after his contract was signed.TS later denied these statements, saying all of Sleepy's claims were "false" and that he embezzled funds from the company, which Sleepy denied. The next day, it was announced TS Entertainment was forwarded to prosecution for overdue payments of artists.
Discography
Singles
| Title | Year | Peak chart positions | Sales | Album |
|---|---|---|---|---|
| As lead artist | ||||
| "I Feel Blame" (기분탓) feat. Baek A-yeon |
2015 | 39 |
|
Non-album singles |
| "Body Lotion" (바디로션) feat. Bang Yong-guk |
2016 | — |
| |
| "So What" (내가 뭘 잘못했는데) feat. Lee Guk-joo |
— |
| ||
| "Oh Yeah" | — | N/A | ||
| "Beautiful Life" | 2017 | — | ||
| "Whatever" (맘대로) feat. Bloo, Liquor K.JR |
— | |||
| "Placebo" (플라시보) with Hash Swan, G2 |
— | |||
| Collaborations | ||||
| "Cool Night" (쿨밤) with Song Ji-eun |
2015 | 18 |
|
Non-album singles |
| "S.M.T.M (Show Me The Money)" with Hash Swan, Olltii, Black Nine, Punchnello, Penomeco, Ignito, Dok2 |
2017 | 82 |
| |
Awards and nominations
| Year | Award | Category | Nominated work | Result |
|---|---|---|---|---|
| 2015 | Won | |||
| 2016 | Nominated |