Lollapalooza announced its 2015 lineup today, including headliners Paul McCartney, Metallica and Florence + the Machine. The annual festival takes place July 31 to Aug 2 in Grant Park.

Other acts performing include Sam Smith, Bassnectar, the Weeknd, alt-j, Alabama Shakes, Tame Impala, Of Monsters and Men, A$AP Rocky, Kaskade, Kid Cudi, Brand New, TV on the Radio, Flying Lotus and Dillon Francis.

Three-day general admission passes sold out yesterday, but single day tickets go on sale today at 10 a.m. and cost $110. The full, day-by-day lineup can be found on Lollapalooza’s website.