Chicago 2004 page 1092 9. ↑ "Berserk is Back!". Dark Horse Songwriter(s) George Harrison – backing vocal, acoustic guitar □ Fusetar □ Guitarra quinta huapanguera □ Guitar synthesizer □ Guitarrón (mexicano) □ Guitarrón (argentino) □ Guitarrón (uruguayo) □ Gut-stringed guitars □ Octave guitar □ Steel-string acoustic guitar □ Fusetar □ Guitarra quinta huapanguera □ Guitar zither