LONDON, UNITED KINGDOM - JUNE 04: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge enjoy The Diamond Jubilee Concert in front of Buckingham Palace on June 4, 2012 in London, England. (Photo by Rota/ Anwar Hussein/Getty Images)
LONDON, UNITED KINGDOM - JUNE 04: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge enjoy The Diamond Jubilee Concert in front of Buckingham Palace on June 4, 2012 in London, England. (Photo by Rota/ Anwar Hussein/Getty Images)