George Michael has filmed a Little Britain sketch for a special episode of the show to be shown on Comic Relief night, The Sun reports today.

George appears alongside the show's stars David Walliams and Matt Lucas, in a sketch involving Andy - the man who is too lazy to walk so uses a wheelchair - and his carer Lou.

David told the newspaper, "We thought, 'Ooh, let's be cheeky and ask, it's for Comic Relief.' He agreed straight away.

"We filmed it in front of an audience and didn’t tell them. When I opened the door and George walked through, there was a stunned silence. It was a hoot."

Matt added, "We kept having to pinch ourselves."