"Thief's Theme" is a single from Nas' double album ''Street's Disciple''. The single contains vocals from Nas' song "The World Is Yours" from his first album ''Illmatic'':
The song featured an interpolation of the famous riff from Iron Butterfly's "In-A-Gadda-Da-Vida" performed by Incredible Bongo Band. Nas would again use the same sample on the 2006 single "Hip Hop is Dead".
Nas sponsored a contest in the United Kingdom in 2004, encouraging entrants to record a verse using the instrumental version of the song. The winner would perform a verse on the song, which appears on the UK version of ''Street's Disciple''. Rising Son won the competition.
The song was featured in Martin Scorsese's Academy Award winning film ''The Departed'' but was not featured on the soundtrack.