Choi Seung-hyun (Korean: 최승현; born November 4, 1987), better known by his stage name T.O.P (Korean: 탑), is a South Korean rapper, singer, songwriter, model, and actor. Best known as a lead rapper of the hip hop Korean boy band Big Bang, he has branched out to act in various dramas and films, including I Am Sam, Iris, Nineteen and 71: Into the Fire.

In 2010, T.O.P and bandmate, G-Dragon collaborated to record and release the album GD & TOP (2010). The album saw the release of three singles: "High High," "Oh Yeah," and "Knock Out," all of which have charted within the top three positions of the Gaon chart, with "High High" becoming a chart-topper. Jeff Benjamin from the American music magazine Billboard noted that T.O.P is well known for his low-bass timbre rapping.[2] On an episode of Korean variety show Family Outing, BIGBANG bandmate Daesung revealed T.O.P's nickname, Bingu TOP. Daesung explained that "Bingu" was referring to T.O.P's foolishness around other people.