CHICAGO (AP) — Borns knows that people didn’t necessarily come to Lollapalooza to see him. That’s why he believes the way to win over a festival crowd is to use pinatas and serenade the beejezus out of them. Twenty One Pilots were so excited about playing Lollapalooza, they went to the stage early to make sure it was just right. Nathan Willet and Matt Maust of Cold War Kids say it’s best to prepare for any summer festival by planning for heat, but they admit they’re backward because they wore jackets when it was 90 degrees. Sunday’s shows were shut down for an hour and a half for weather concerns but no bands were cut. Headliners included Paul McCartney, Metallica, Sam Smith and Florence and the Machine.