"Crazy Beat" is a song by English band Blur. It was released as the second single from their seventh album Think Tank in 2003. "Crazy Beat" has been compared by critics and the band to Blur's 1997 hit "Song 2" in its guitar-driven simplicity. Released in the United States as the first single from the album, it became Blur's first single since "Song 2" to chart on the Modern Rock Tracks chart, reaching No. 22. Graham Coxon, who had left the group prior to the album's release, plays on the single's B-side "The Outsider".
"Crazy Beat" was supported by two music videos. The official video sees the band performing the song and creating a beast composed of green lightning which attacks people in a pub (Graham Coxon does not appear in this video). The alternate video shows four women performing a peculiar dance to the song, wearing matching brown dresses and blonde wigs.