Brian Joseph Burton (born July 29, 1977), better known by his stage name Danger Mouse, is an American musician, songwriter and producer. He came to prominence in 2004 when he released The Grey Album, which combined acapellas from Jay-Z's The Black Album with instrumentals from The Beatles' White Album.
He formed Gnarls Barkley with Cee-Lo Green and produced their albums St. Elsewhere and The Odd Couple. He produced the second Gorillaz album, 2005's Demon Days, as well as Beck's 2008 record, Modern Guilt. He has been nominated for a Grammy Award in the Producer of the Year category 4 Times (2005, 2006, 2008, 2010). In addition, Burton worked with rapper MF Doom as Danger Doom and released the album The Mouse and the Mask and the EP Occult Hymn.
In 2009 he collaborated with James Mercer of the indie rock band The Shins to form Broken Bells. The group's first album was released on March 9, 2010.
Danger Mouse was listed as one of Esquire Magazine's 75 most influential people of the 21st century. He is currently producing U2's next album.