Post some amazing impersonations

This Elton John impersonation is pretty amazing. His vocal inflections are so on and he even makes a lot of the same facial expressions. 

Have you guys seen any amazing impersonations? If so, post them!

This "Freddie Mercury" basically IS Freddie:

http://www.youtube.com/watch?v=OUQ2iA0rBWc 

Edit:  Here's a 2nd song - Radio Ga Ga - http://www.youtube.com/watch?v=-tRl1QWov4Q

And, here's an "Eddie Vedder" who isn't even a native English speaker:
http://www.youtube.com/watch?v=hwrzq1qJsLo 

http://www.youtube.com/watch?v=PhK283aJBK4

Ylvis impersonating Josh Groban.

This "Freddie Mercury" basically IS Freddie:

http://www.youtube.com/watch?v=OUQ2iA0rBWc 

Edit:  Here's a 2nd song - Radio Ga Ga - http://www.youtube.com/watch?v=-tRl1QWov4Q

And, here's an "Eddie Vedder" who isn't even a native English speaker:
http://www.youtube.com/watch?v=hwrzq1qJsLo 

Stinger78

In terms of singing like Freddie Mercury, I think Marc Martel is better. I seriously can't believe freaking Adam Lambert is fronting Queen now instead of Marc...

That Eddie Vedder one is hella good though. The Aries Spears vid someone else posted was also awesome.

Anyways, this guy has a bunch of videos of him doing his awesome gollum impression and they are pretty damn funny!

I swear I remember a funny video involving a dead on Alan Rickman impression but I can't for the life of me find it. Unfortunately there are a billion Alan Rickman impression videos on youtube so it is like finding a needle in a haystack....

http://www.youtube.com/watch?v=GKE9EsU9U2s

This kid does a very good impression of Herbert (the geriatric paedophile) from Family Guy. If you closed your eyes you might actually believe it was Mike Henry and not him doing the voice!