Fresh off a pair of rarity-dominated residencies in New York and L.A. that saw Tom Petty and the Heartbreakers busting out super-deep cuts like "Billy the Kid" and "A Woman In Love," the Hall of Fame rockers kick off another wild summer on the road with a headlining gig at 'Roo. Guitarist Mike Campbell admits it can be a drag to play the hits every night at arena and festival gigs. But fear not: a main-stage "American Girl" sing-along is a practical certainty. "I still love playing that song," Campbell says. "It honestly gives me an adrenaline rush every time, still."