As you already know, today marks the arrival of Eminem's long awaited new album, 'Relapse,' and fans around the world are clamoring for a piece of the rap superstar. Em is celebrating the release with a special launch party in Detroit, and unless you're one of the two who scored tickets via the 'Relapse' website, your chances of attending are...well, "slim."

However, all hope is not lost. TV presenter Jonathon Ross was invited to the Detroit party but unable to attend, so he took to Twitter to pass the tickets along to two lucky fans. The only catch: you must have the answer to a bit of Shady trivia.

"On which Marvel comic book cover did Eminem just appear?"

Know the answer? Then start Tweeting (@Wossy)!