LOS ANGELES, Calif. -- Eminem's comeback will take another step on May 31, when the notorious bad-boy rapper will take the stage to perform at the 2009 MTV Movie Awards. Slim Shady's return to the stage, which MTV announced on Tuesday, will come days after the release of his sixth studio album, 'Relapse,' on May 19. The album features the newly released single, 'We Made You'--a song that openly mocks Jessica Simpson and Lindsay Lohan, among other celebrities.