Since releasing his debut album, The Slim Shady LP in 1999, he's gone on to become the best-selling rap artist in history. And on Monday, Eminem , 49, announced that he is releasing a second greatest hits album, titled Curtain Call 2, which will feature one previously unreleased track. Slim Shady took to social media to share the exciting news that the follow-up to his 2005 compilation album: Curtain Call ...