Recording the soundtrack for this year's football ads

I’ve just come from one of these interminable sessions in the recording studio where we’ve had to sing the same four bar phrase over and over and over again. Three hours’ worth. It was the soundtrack to the television ads for this year’s football season and the phrase was “that’s my team”. We had to spend the first hour “dumbing down” the choir’s sound so that it would approximate that of a crowd of footie supporters (i.e. not in tune, and a bit out of time). Perhaps if the organisers had handed out some beer, we’d have been able to produce the effect a bit more quickly!