Earl Simmons, better known by his stage names DMX and Dark Man X, is an American rapper and actor. In 1999, DMX released his best-selling album ...And Then There Was X, which featured the hit single "Party Up". He has acted in films such as Belly, Romeo Must Die, Exit Wounds, Cradle 2 The Grave, and Last Hour. In 2006, he starred in the reality television series DMX: Soul of a Man, which was primarily aired on the BET cable television network. In 2003, DMX published a book of his memoirs entitled, E.A.R.L.: The Autobiography of DMX. DMX has sold over 30 million records worldwide, making him one of the best-selling hip-hop artists of all time.