In just a few weeks, Kris Allen, Adam Lambert and Alison Iraheta will jam in final sessions for their fall debuts. But before the American Idol Season Eight greats hit the studio, they’re still rocking fans on the American Idols Live tour. Rolling Stone brought you a report from the show’s opening night and onstage photos — and in our new issue, Nicole Frehsée goes backstage for an intimate look at the Idols’ life on the road. Grab the issue for her full report, and check out exclusive behind-the-scenes shots of Lambert primping for his set and grabbing a van nap, plus Allen kicking back and prepping for his headlining slot. And after the jump, Allen shows off exactly what happens when he chugs energy drinks pre-show in a backstage video.