Gnarls Barkley is an American musical duo formed in 2003, consisting of singer CeeLo Green and producer Danger Mouse. They gained widespread recognition with their hit single "Crazy," which topped charts in multiple countries and showcased a unique blend of soul, rock, and hip-hop influences. The duo's debut album, "St. Elsewhere," was released in 2006 and received critical acclaim for its innovative sound and lyrical depth. Gnarls Barkley is known for their eclectic style and has contributed significantly to the music scene, influencing various artists and genres since their formation.