Source: RapRadar

On Friday night, Beats Music celebrated the launch of their new online streaming service with an event held at the Belasco Theatre in Los Angeles, packed with performances from the likes of Nas, Diddy and Ma$e, Bone Thugs-N-Harmony, Blackstreet, Busta Rhymes, Ice Cube, and more. Eminem and Dr. Dre closed out the show, and in this clip Em hit the stage with his classic single 'Lose Yourself'. Check it out above. The Marshall Mathers LP 2 is in stores now.