The old saw "the show must go on" wasn't exactly true last year. Entire rock and pop music tours were canceled -- ticket sales were that bad. This summer, promoters are banking on a rebound, and the early signs are encouraging, according to Steve Knopper. He's a contributing editor for Rolling Stone who lives in Denver. He sat down with CPR’s Zachary Barr to give us a preview of the summer concert season which kicks off with U2 this weekend in Denver.
[CPR Photo]