Grammy-winning, Atlanta hip-hop duo Outkast played the first of 3 sold out weekend shows (22,000 fans each night) Friday night at Centennial Olympic Park. Outkast ATLast celebrates the trail-blazing group's 20th anniversary and featured opening acts 2 Chainz, Future, Janelle Monae, Yung Ralph, Lil Wil and Slimm Calhoun. (Robb D. Cohen/RobbsPhotos.com)