Did you know Stevie Nicks almost joined The Heartbreakers? After they recorded "Stop Dragging My Heart Around," Nicks said she even would've left Fleetwood Mac if offered. She told Rolling Stone,  "Had Tom Petty called me up one day and said, ‘If you want to leave Fleetwood Mac to be in the Heartbreakers, there's a place for you,' I might well have done it!” They have frequently collaborated over the years, and recently met up again in London on the Heart-breakers 40th Anniversary Tour, which plays Boston on the 20th.