Sorry I'm late...
Save yourself - Stabbing Westward
http://www.youtube.com/watch?v=F33j5E_77B0
I am so glad I'm not going out tonight. It wouldn't be a good thing.
Lordi
Who's Your Daddy
I So can relate, for other reasons...
Hardrock Hallelujah
http://www.youtube.com/watch?v=TdItwaLrv1U&feature=related
RH
Not extreme metal .......but definitely the concept is on the dark side.
Operation Ground and Pound ... DragonForce