44. "Peace in L.A."
Days after the 1992 L.A. riots, Petty rushed into the studio with Mike Campbell to vent his frustrations and plead for calm. "I just had the feeling that the word 'peace' needs to be on the radio," said Petty. "I quickly got on the phone, arranged the session, and then went into my little room and wrote the song." It was on the radio just one day after they wrapped recording, with all profits from its release going to charities across L.A. "To this day I still get letters of thanks from missions in East L.A. because money keeps coming in," he said. "I felt like we did some good."