This content is copyright of CelebMix.com. Lollapalooza is returning to Chicago's Grant Park on July 30 - August 2 and the star-studded lineup for the four-day festival has just been announced. This year's headliners include some of music's most powerful women right now. Charli XCX, Lorde, Olivia Dean, Jennie, and Tate McRae take the top performing slots for the festival alongside John Summit, The Smashing Pumpkins, and The XX. The day by day lineups have also been released, with Lorde and John Summit performing on Thursday July 30.