"Let's Get It Started" is a song by American group The Black Eyed Peas. It is a clean version of "Let's Get Retarded" from their third studio album, Elephunk (2003). The album version was originally only reworked for its use in promotion for the 2004 NBA playoffs on ABC in April 2004, and the clean version was released as the fourth and final single from Elephunk on June 1, 2004, by A&M Records and Interscope Records, also appearing on a reissue of the album.

Black Eyed Peas is an American musical group consisting of rappers will.i.am, apl.de.ap and Taboo. The group's lineup during the height of their popularity in the 2000s featured Fergie, who replaced Kim Hill in 2002. Originally an alternative hip hop group, they subsequently refashioned themselves as a more marketable pop-rap act. Although the group was founded in Los Angeles in 1995, it was not until the release of their third album Elephunk in 2003 that they achieved high record sales.