In 1989, Petty released "Full Moon Fever", which featured hits "I Won't Back Down", "Free Fallin'" and "Runnin' Down a Dream". It was nominally his first solo album, although several Heartbreakers and other well-known musicians participated: Mike Campbell co-produced the album with Petty and Jeff Lynne of Electric Light Orchestra, and backing musicians included Campbell, Lynne, and fellow Wilburys Roy Orbison and George Harrison (Ringo Starr appears on drums in the video for "I Won't Back Down", but they were actually performed by Phil Jones).