Britain's Queen Elizabeth (L) looks on as her husband Prince Philip, The Duke of Edinburgh, (4R) speaks with Prince William (R) and Catherine, Duchess of Cambridge (2nd R) with Prince Harry (5th R) and Princess Beatrice (3rd R) on the balcony of Buckingham Palace following the Trooping the Colour ceremony in central London June 16, 2012. Trooping the Colour is a ceremony to honour the sovereign's official birthday.[Photo/Agencies]