US first lady Michelle Obama, left, meets the Duchess of Cambridge during a reception at Buckingham Palace in London, to welcome Heads of State and Heads of Government to the UK before they travel to the Olympic Stadium for the Opening Ceremony of the London 2012 Olympic Games, Friday July 27, 2012. (AP Photo / Dominic Lipinski)
Gallery: World dignitaries arrive for Olympics
Jul. 27, 2012 @ 04:28 PM
Heads of state began arriving this afternoon at Buckingham Palace in London for a reception hosted by Queen Elizabeth II prior to the fopening ceremony of the London 2012 Olympic Games, Friday.