Lollapalooza 2014: Skrillex + Gesaffelstein

Brostep pioneer and spaceship captain Skrillex rumbles the room at Concord—one of the smaller spaces you'll catch the hair-whipping celebrity. Gesaffelstein, the French beat maker linked to the Brodinksi scene, which is way less bro-y than it sounds, opens. You are probably most familiar with his work on Kanye's Yeezus. His fingerprints are on "Black Skinhead" and "Send It Up," which are good indicators of his sound.