Gnarls Barkley is an American 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. The duo released their second album, The Odd Couple, in March of 2008.