Brian Burton, better known under his stage name Danger Mouse, is a producer and DJ whose most recent work is with Cee-Lo on Gnarls Barkley. Gnarls Barkley's first single "Crazy" became the first UK number-one single based solely on downloads. He came to prominence in 2004 by remixing The Beatles' White Album and rapper Jay-Z's Black Album to make The Grey Album. DangerMouse produced the second Gorillaz album, 2005's Demon Days, which earned him a Grammy nomination for Producer of the Year.