Eminem has accepted to perform at Nelson Mandela's 90th birthday bash this summer in London's Hyde Park. Queen band member Brian May, the organizer of the event, contacted Eminem's management and surprisingly enough, Slim Shady accepted.

Em announced his retirement in 2005 but he has been working on material recently for a possible new album, including an unlikely collaboration with DJ Premier.  

He will be sharing the stage on June 27 with Stevie Wonder, Annie Lennox, Keane, Razorlight, and others as this will be his first live performance in years. [The Sun]