"Crazy Beat" is a song by English band Blur from their seventh album, Think Tank (2003). The song was written and produced by band members Damon Albarn, Alex James and Dave Rowntree in Morocco, with Norman Cook also serving as a producer. It was first serviced to alternative radio stations in the United States on 17 March 2003, by Virgin Records, while being commercially released in the United Kingdom on 7 July 2003, by Parlophone, including the songs "The Outsider" and "Don't Be" as B-sides. A three-chord song, "Crazy Beat" is a dance-pop and electropop track which draws influences of big beat and nu metal into its composition. Lyrically, it praises the effects of music and clubs on crowds.

Think Tank is the seventh studio album by the English rock band Blur, released on 5 May 2003. Continuing the jam-based studio constructions of the group's previous album, 13 (1999), the album expanded on the use of sampled rhythm loops and brooding, heavy electronic sounds. There are also heavy influences from dance music, hip hop, dub, jazz, and African music, an indication of songwriter Damon Albarn's expanding musical interests.