Fans of pop-punk music were delighted last fall when Blink-182 announced they were reuniting their original lineup (Mark Hoppus, Travis Barker, and Tom DeLonge) for a new album and a world tour. But preparation for that tour, which was originally set to kick off later this month, has already taken a toll on Barker. The drummer revealed on Instagram that he's getting surgery after damaging his hand in rehearsal. As a result, the beginning of the tour will be postponed.