Today is Comic Relief Day. The day when instead of going out on a Friday night, we all stay in and watch celebrities humiliate themselves for money on the telly all night. Of course we aren't talking just any celebrities. Thanks to film director, and Comic Relief founder, Richard Curtis, the charity attracts the super A-list. This year is no different, and when we heard that comedian Katy Brand had convinced Kate Moss herself to make an appearance in a sketch, we reserved our place on the sofa. But before the big reveal tonight, we've got our hands on a behind-the-scenes clip. None of our teachers ever looked like this!