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LONDON, ENGLAND - MAY 20: (NO PUBLICATION IN UK MEDIA FOR 28 DAYS) Prince Charles, Prince of Wales with Camilla, Duchess of Cornwall, Prince William and Prince Harry at the live pop concert to mark the 30th Anniversary of the Prince's Trust Charity at the Tower of London on May 20, 2006 in London, England. (Photo by POOL/Tim Graham Picture Library/Getty Images)

LONDON, ENGLAND - MAY 20: (NO PUBLICATION IN UK MEDIA FOR 28 DAYS) Prince Charles, Prince of Wales with Camilla, Duchess of Cornwall, Prince William and Prince Harry at the live pop concert to mark the 30th Anniversary of the Prince's Trust Charity at the Tower of London on May 20, 2006 in London, England. (Photo by POOL/Tim Graham Picture Library/Getty Images)