Choi Seung-hyun (Korean: 최승현; born November 4, 1987),[1] known professionally as T.O.P, is a South Korean rapper.

He is a former member of the South Korean K-Pop group Big Bang.

He made his solo debut in 2010 with the release of the digital single "Turn It Up."

Later that year, T.O.P and bandmate G-Dragon formed a subunit to release the album GD & TOP (2010).

His second single, "Doom Dada" was released in 2013.