The celebrity cameos are getting ridiculously funny on Extras, which is airing season two right now in Britain (HBO hasn't announced an air date for season two in the U.S.). Last week, it was Orlando Bloom trying to convince 'Maggie' that he's more famous than Johnny Depp. This week, it's David Bowie in a restaurant, singing a song about Andy and his pug nose face. It's completely over the top and, in true Ricky Gervais style, it's uncomfortably hilarious.

Video is after the jump.