LONDON, ENGLAND - JUNE 11: HM Queen Elizabeth II and HRH Prince Philip, Duke of Edinburgh wave from the balcony of Buckingham Palace after the Trooping the Colour parade on June 11, 2011 in London, ... more 
LONDON, ENGLAND - JUNE 11: HM Queen Elizabeth II and HRH Prince Philip, Duke of Edinburgh wave from the balcony of Buckingham Palace after the Trooping the Colour parade on June 11, 2011 in London, England. The ceremony of Trooping the Colour is believed to have first been performed during the reign of King Charles II. In 1748, it was decided that the parade would be used to mark the official birthday of the Sovereign. More than 600 guardsmen and cavalry make up the parade, a celebration of the Sovereign's official birthday, although the Queen's actual birthday is on 21 April. (Photo by Dan Kitwood/Getty Images) less 
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Getty Images | Photo By Dan Kitwood / Getty Images
Sat, Jun 11, 2011 10:03 AM EDT