Bonnaroo Arts & Music Festival 2015 has announced their lineup with Slayer, Between the Buried and Me, Pallbearer and Unlocking The Truth joining a lineup that includes Billy Joel, Mumford & Sons, Deadmau5, Robert Plant, Kendrick Lamar, Florence + The Machine, Tears For Fears, Earth Wind & Fire, Royal Blood and many others. The fest will take place between June 11 and 14, 2015 in Manchester, TN.