Very good Impressionist does American Idol.

I was looking for something else when I came across Dave Coyne on YouTube. He's an impressionist and I'm telling ya, he does a wicked Nicholson and Walken.
Yes everybody thinks they can do it, but this dude is good.
He does an American Idol spoof and besides the fact that the Croc Hunter Steve Irwin is dead, just appreciate how good a job this guys impression is.
Warning there are some "swears" in so it may not be suitable for a "work" environment. (Something that's not too big an issue here in my house!)