Last week we posted behind-the-scenes footage of Kate Moss's comedy sketch with Katy Brand and Sadie Frost for Comic Relief. Well, now we have dug up a video of that sketch, which debuted on BBC One last Friday. It's a corker, with Moss playing the sultry headmistress summoned by Frost, who plays the fed-up teacher of a class of unruly fashion students. Click the image above to watch video, or alternatively click here. Happy Friday!