5. Tom Petty and Stevie Nicks, 'Stop Draggin' My Heart Around'
Tom Petty originally wrote "Stop Draggin' My Heart Around" as a solo song, but his producer Jimmy Iovine was working with Stevie Nicks at the time and he talked Petty into letting her sing on it. She released it as the first single from her 1981 debut solo LP Bella Donna and it shot to Number Three on the Hot 100, firmly establishing that Nicks could have a career outside of Fleetwood Mac. In 2006, Nicks went on tour with Petty and they revived this song every single night.