The Mad Decent Block Party has just revealed its lineup. This year's event with packed with talent, having Outkast as a headliner along with performances from Action Bronson, Chance The Rapper, Sleigh Bells, Flosstradamus, Riff Raff, Diplo, Kaytranada, and more. Expect this 22-city tour across the United State and Canada to kick off on July 26th, with Outkast headlining the Denver show on August 22nd. Check out the full schedule of dates and purchase tickets here.