July 27, 2012: Steve Redgrave, right, holds the Olympic torch after entering the stadium during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Smoke from fireworks surrounds the iconic Tower Bridge over the River Thames in central London, decorated with Olympic rings, during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Fireworks illuminate the sky over the Tower Bridge and River Thames in London during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Actors perform in a sequence meant to represent Britain's National Health Service (NHS) perform during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Actors perfrom during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Artists perform during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Audience members holding LED panels light up the stadium during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: The Olympic rings are suspended over the stadium during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Performers dance during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: A person dressed as Queen Elizabeth II parachutes into the Olympic stadium during the Opening Ceremony of the 2012 Olympic Summer Games at the Olympic Stadium in London. (AP)
July 27, 2012: Performers play drums during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Actors dressed as Mary Poppins perform during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Britain's Queen Elizabeth II, center, the President of the International Olympic Committee Jacques Rogge, left, and Britain's Archbishop of Canterbury Rowan Williams, right, watch the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Actors perform during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Smoke rises from the Olympic rings as they are suspended over the stadium during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Actors perform during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Performers dance during the Opening Ceremony at the 2012 Summer Olympic. (AP)
July 27, 2012: Actor Rowan Atkinson performs during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Great Britain's Chris Hoy carries the flag during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Puerto Rico's Javier Culson carries the flag during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: The United States flag is carried to it's place during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Britain's Chris Hoy carries the flag during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Britain's Chris Hoy carries the flag during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: U.S. athletes walk in a parade during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Britain's Tom Daley, center, parades with fellow athletes during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Fireworks ignite over the Olympic Stadium during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Fireworks illuminate the sky over Olympic Stadium during Opening Ceremonies at the 2012 Summer Olympics. (AP)
July 27, 2012: The Olympic cauldron is lit during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: The Olympic cauldron is lit during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: The Olympic cauldron burns after being lit during the Opening Ceremony at the 2012 Summer Olympics. (AP)
July 27, 2012: Fireworks light up the Olympic Stadium during the Opening Ceremony for the 2012 Summer Olympics. (AP)