Watch the moment Simon Cowell gets sprayed in the face with silly string during live Britain’s Got Talent semi-final

BRITAIN'S Got Talent viewers found it hysterical when a bunch of school children pranked Simon Cowell during the live semi-final. Simon was behind the judges' desk as the kids from Braunstone Community Primary School performed their hearts out in the hope of making it to the final. In one hilarious moment during their routine some of...