Purple Onion is the first studio album by The Les Claypool Frog Brigade, released on September 24, 2002. It followed two live releases by the band, and is the first release of the Frog Brigade's original compositions. While the Brigade regulars are consistent on much of the record such as Jay Lane, Eenor, Skerik and new percussionist Mike "Tree Frog" Dillon, many special guests appear on the album as well. Guests on multiple tracks include Ben Barnes and Sam Bass (then both from Deadweight).