The Sun reports Eminem is set to make a comeback at former South African president Nelson Mandela’s 90th birthday bash on June 27th in London’s Hyde Park. “We’re amazed to have Eminem on board,” an insider told the tabloid. “We wanted some of the greatest artists from recent times and Eminem was on the list. Brian [May of Queen, who is organizing the event] contacted Eminem’s management on the off-chance and never expected him to go for it. It’s going to be explosive stuff and it’s certainly a big stage to make his comeback.” Read more.