As if the Spring Awakening lineup wasn't big enough, Diplo & Skrillex have been announced as a surprise headliner.
With the festival taking place at Soldier Field in Chicago (where the Chicago Bears play), this will be the first time Jack U grace the Midwest with their collaborative presence.
Coming fresh off their debut album, Jack U will add even more weight to the festival's already massive lineup. Diplo was already on the bill along Zedd, Tiesto, Eric Prydz, Afrojack, Dada Life, Duke Dumont, Excision, Flosstradamus, Martin Garrix, Zeds Dead and many more big names.
Nearly 100,000 people showed up last year for the festival and we can't imagine any less this year. You can pick up tickets now.