LONDON, ENGLAND - APRIL 08: Members of the Queen's Guard perform the 'Changing of the Guard' ceremony at Buckingham Palace on April 8, 2011 in London, England. The event, which is one of London's top tourist attractions, involves members of the Queen's Guard exchanging duties, and takes place almost every day outside Buckingham Palace. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - APRIL 08: Members of the Queen's Guard perform the 'Changing of the Guard' ceremony at Buckingham Palace on April 8, 2011 in London, England. The event, which is one of London's top tourist attractions, involves members of the Queen's Guard exchanging duties, and takes place almost every day outside Buckingham Palace. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - APRIL 08: A band from the Queen's Guard perform as the 'Changing of the Guard' ceremony takes place at Buckingham Palace on April 8, 2011 in London, England. The event, which is one of London's top tourist attractions, involves members of the Queen's Guard exchanging duties, and takes place almost every day outside Buckingham Palace. (Photo by Dan Kitwood/Getty Images)
Spectators watch the Changing of the Guard ceremony through the railings of Buckingham Palace on April 20, 2011, in London. Soldiers guard Queen Elizabeth II and other royals at Buckingham Palace in a 24 hour rotation with a ceremonial hand over at 11.30 in the morning. Various members of Britain's armed forces will take part in aspects of the Royal Wedding between Britain's Prince William and his fiancee Kate Middleton in London's Westminster Abbey on April 29, 2011. AFP PHOTO/PETER MACDIARMID/POOL (Photo credit should read PETER MACDIARMID/AFP/Getty Images)
Spectators watch the Changing of the Guard ceremony through the railings of Buckingham Palace on April 20, 2011, in London. Soldiers guard Queen Elizabeth II and other royals at Buckingham Palace in a 24 hour rotation with a ceremonial hand over at 11.30 in the morning. Various members of Britain's armed forces will take part in aspects of the Royal Wedding between Britain's Prince William and his fiancee Kate Middleton in London's Westminster Abbey on April 29, 2011. AFP PHOTO/PETER MACDIARMID/POOL (Photo credit should read PETER MACDIARMID/AFP/Getty Images)
