Favourite Videos

[swood]

What are your favourite Youtube (or any other video hosting site) videos?

Here are a couple of mine:
http://www.youtube.com/watch?v=LXO-jKksQkM
http://www.youtube.com/watch?v=6bBVJAFrN0U
http://www.youtube.com/watch?v=qIoG4PlEPtY
http://www.youtube.com/watch?v=5MeiwLLZjDo

[Evolution]

http://www.youtube.com/watch?v=Z3pXAIJFK3g

[ashleywilliam]

i knew u were trouble is my favourite video now i loved watching it, :P :P