Eminem is going to be pretty busy for the summer festival season. The rapper is one of the headliners at this year's Bonnaroo Music and Arts Festival. The Killers and Muse are also headlining the 17th annual, four-day event held, which is held in Manchester, Tennessee. The event begins June 7th. Joining them will be Future, Sheryl Crow, Sturgill Simpson, Khalid, Nile Rodgers & Chic, Bon Iver, Paramore and others.