There is something strangely captivating about a guy with a stupid haircut at the center of an ostentatious dance party. Strobe lights flash to the beat. Flames burst from cannons placed in front of the stage. "Can you prove to me that you are the capital of the motherfuckin' bounce?" Skrillex screamed to his Chicago audience at Lollapalooza 2014, a query answered by thousands of feet jumping in unison. The dancehall beats of his recent Recess LP stand out against his noisier (but crowd-pleasing) brostep. He's almost maturing, but you can be sure that he'll bring the pyrotechnics to Navy Pier. Weird and dark rapper A$AP Ferg is along for the ride, too.