British singer Paolo Nutini performs at the Opening Ceremony Celebration Concert in Hyde Park, London, Friday, July 27, 2012. The concert is part of a series of events being organised by the Mayor of London Boris Johnson, to celebrate the London 2012 Olympic Games. (AP Photo/James McCauley)
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.