Olimpijski stadion u Londonu spreman za veliko otvaranje

Performers wait for the Opening Ceremony at Olympic Stadium before the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charlie Riedel)

The Olympic Stadium prepares for the Opening Ceremony of the 2012 Summer Olympic Games on Friday, July 27, 2012, in London. (AP Photo/Mike Egerton, PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE

Guo Lei of Beijing, holds up two Chinese flags before entering Olympic Stadium for the Opening Ceremony of the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Julie Jacobson)

In this photo taken with a fisheye lens, a man takes his photo with another man dressed as a cup in front of the Olympic Stadium prior to the Opening Ceremony for the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Dmitry Lovetsky)

Members of the British military walk to Olympic Stadium for the Opening Ceremony of the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Julie Jacobson)

Anna Prior, right, walks with her children Detty Prior, center, and Johnny Prior toward Olympic Stadium to watch the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Julie Jacobson)

Britain's Prime Minister David Cameron, left, London's Mayor Boris Johnson, center, and Labour party leader Ed Miliband wait for the start of the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)

An actor tends sheep during the pre-show prior to the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Mark Humphrey)

The Red Arrows fly over Olympic Stadium before the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Matt Slocum)

British Prime Minister David Cameron, left, stands with his wife Samantha and Princess Anne after arriving for the Opening Ceremony of the 2012 Olympic Games on Friday, July 27, 2012, in London. (AP Photo/Toby Melville, Pool)

A spectator wears glasses in the colors of the British flag during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Markus Schreiber)

Frank Turner sings during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charlie Riedel)

United Nations Secretary-General Ban Ki-moon, right, stands alongside his wife Yoo Soon-taek ahead of the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Jae C. Hong)

Bill and Julien Howells from the United States pose in front of the Olympic Stadium prior to the Opening Ceremony for the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Dmitry Lovetsky)

The Red Arrows flies over the stadium during the Opening Ceremony at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Eric Gay)

The Olympic Stadium prepares for the Opening Ceremony of the 2012 Summer Olympic Games on Friday, July 27, 2012, in London. (AP Photo/Anthony Devlin, PA) UNITED KINGDOM OUT NO SALES NO ARCHIVE