Earl Simmons better known by his stage name DMX, is an American rapper and songwriter. He began rapping in the early 1990s, and released his debut album It's Dark and Hell Is Hot in 1998, to both critical acclaim and commercial success, selling 251,000 copies within its first week of release. He released his best-selling album, ... And Then There Was X, in 1999, which included the hit single 'Party Up (Up in Here)'. Since his debut, DMX has released seven studio albums. He has been featured 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.