Y'know that bit at the end of Return of the Jedi when Luke helps Darth take off his mask so he can "see him with his own eyes", and under his mask Darth is a big baldy ugly bloke.

I feel that I don't need to say any more, just look at this picture and you'll agree that George is Darth.

http://news.bbc.co.uk/1/hi/entertainment/4790063.stm