People gather around the stage at the One Year to Go ceremony for the London 2012 Olympics countdown event in Trafalgar Square, London on July 27, 2011. (Yui-tak Wan / For China Daily) 

Britain's Prime Minister David Cameron (L) and London Mayor Boris Johnson chat during the London 2012 Olympic Games one year countdown at an Olympic event in Trafalgar Square in central London July 27, 2011. [Yui-tak Wan / For China Daily] 

A spectator celebrates during the London 2012 Olympic Games one year countdown at an Olympic event in Trafalgar Square in central London July 27, 2011. [Yui-tak Wan / For China Daily] 

Former Olympic gold medallists Kelly Holmes and Sebastian Coe, the Chairman of the London 2012 Organising Committee, hold up the newly designed medals for the London 2012 Olympic Games, at an Olympic event in Trafalgar Square in central London July 27, 2011. [Yui-tak Wan / For China Daily] 

A group of young Chinese from Guangzhou, China joins the celebrating crowd in the London 2012 one year countdown event in Central London. [Yui-tak Wan / For China Daily]