Railroad Earth Topaz Jones Magic City Hippies Andy Frasco & the U.N. Gregory Alan Isakov alt-J Shakey Graves Jack White Big Boi Twiddle Magic City Hippies Railroad Earth Magic City Hippies Moon Taxi // Amber Woodhouse Gregory Alan Isakov Gregory Alan Isakov Luthi STS9 Whitney Mongé Moon Taxi Gregory Alan Isakov Red Rocks Amphitheater Mountain Man Trampled by Turtles Magic City Hippies Gregory Alan Isakov Luthi Gregory Alan Isakov Francis and the Lights St. Paul and the Broken Bones The Paranoyds Atmosphere Waka Flocka Flame St. Paul and the Broken Bones Magic City Hippies Topaz Jones