Music
Rex Features
The singer will perform on June 27 at the 46664 Concert, which pays tribute to the former South African president.
Tim Massey, International Director of 46664 said: "We are delighted that Amy will be appearing at Hyde Park to celebrate Nelson Mandela's 90th birthday.
"Amy joins an illustrious list of names showing their support for 46664 and the fight against AIDS."
Other acts on the bill include Leona Lewis, Queen, Annie Lennox, Simple Minds, Razorlight and Sugababes.
Gordon Brown, Bill Clinton, Oprah Winfrey, Robert De Niro and Lewis Hamilton are among the celebrities who will appear at the event.
Tickets are still available for the concert.
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