Bolt fans celebrate in London
6 August 2012 Last updated at 01:57 BST
Usain Bolt has defended his men's 100m title in style, winning the final in an Olympic record time of 9.63 seconds.
Brixton in south London has a huge Jamaican community and some fans watched inside a barber shop as the the action unfolded.
The crowds also watched the drama on a big screen in Hyde Park in central London.