Add Yahoo as a preferred source to see more of our stories on Google. Eminem recently surprised a Detroit audience when he appeared onstage during a 50 Cent concert. (Evan Agostini / Invision / ...

Eminem had one shot, one opportunity to seize what he wanted in one moment — and he captured it by joining his longtime friend and collaborator 50 Cent onstage over the weekend. The “Lose Yourself” ...