The 'Stan' rapper has been added to the line-up for the former South African President's milestone celebrations at London's Hyde Park after Queen rocker Brian May persuaded him to come out of retirement.
A source said: "Brian contacted Eminem's management but never expected him to agree. It's going to be explosive stuff and it's certainly a big stage to make his comeback."
While Mandela is famed for his humanitarian work, Eminem has caused controversy with his song lyrics, which have been accused of being violent, homophobic, misogynist and racist.








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