Gnarls Barkley is a musical collaboration between multi-instrumentalist and producer Danger Mouse (Brian Burton) from New York, and rapper/vocalist Cee-Lo Green (Thomas Callaway), from Atlanta. Their first album, St. Elsewhere, was released in 2006; it and their first hit, "Crazy", were major commercial successes, and were noted for their large sales by download.

Gnarls Barkley is the collaboration between producer DJ Danger Mouse and Goodie Mob rapper/ singer Cee-Lo . Their first single, Crazy , which debuted at #1 on the British pop charts on April 2, 2006, is the first #1 UK single to be obtained solely through Internet downloads. The success of the single in the UK was due largely to its use in a promotional trailer for Radio 1 across all of the BBC TV channels prior to the single’s release. ‘Crazy’ stayed at #1 for almost 9 weeks. The buzz for