Found out about this girl a while ago, she's a classically trained pianist who does covers and posts the videos on youtube. A lot of people do that sure, but this girl has done covers of everything from Immolation to Joy Division.
Metallica - Fight Fire With Fire
Carcass - Corporal Jigsore Quandary
Opeth - Deliverance
Check her out at http://www.youtube.com/user/vkgoeswild