The Weeknd and Jack Ü are headlining the 2015 Hard Summer Music Festival. The Chemical Brothers, Dillon Francis, RATATAT, Caribou, and Chromeo are also on the electronic-leaning lineup for the event, which takes place in Fairplex, California, over August 1 and 2. SPIN favorites ILoveMakonnen, Jamie xx, and Rae Sremmurd will take the stage too. Check out the full lineup below, and pick up tickets here.