Fuller is an accomplished singer. He did several "bandstand" gigs with Bill Aken's Los Nomadas rock group at holiday festivities in Whiskey Flats, California. While acting as grand marshal for the local Memorial Day parade, he performed a vocal rendition of the 1950s song "Caribbean," singing the same verse over and over. He later told the band that he only knew the first verse of the song. In 1967, he recorded an LP in Munich, Germany. Most of the songs were recorded in German, including "Ein Einsamer Cowboy" ("Lonesome Cowboy"), "Adios Mexicana" ("Goodbye Mexican Girl"), "Uberall Auf Der Welt" ("All Over the World"), "Sind Wie Blumen" ("Girls Are Like Flowers"). Whether the album was successful in Germany is unknown.