It is the sound of the Vuvuzelas.
The Vuvuzela is a blowing horn commonly used during football matches in South Africa.
It's a Vuvuzela - a stadium horn which is blown at Football games in South Africa.
Soccer City Stadium, Johannesburg.
Wembley Stadium, London.
Maracana, Brazil
There will be no World Cup held in 2012.
Soccer city stadium, Johannesburg
Soccer city stadium, Johannesburg
Moses Mabhida Stadium.
Wembley stadium, London.
The Azteca Stadium in Mexico City hosted the World Cup Final in 1986, which Argentina won.
That will greatly depend on the size of the stadium.
Soccer city stadium, Johannesburg