Great responses, y'all!
I get distracted for a while and come back to a whole list of stuff — very cool!
ez_willis, your Cheap Trick mention is definitely a winner in my book.
Some more good stuff:
Metallica's version of "Helpless" from *Garage Days Re-Revisited"
"Lakeside Park" by Rush
"Hair of the Dog" by Nazareth (can't _believe_ I forgot this one!)
"Rust in Peace. . . Polaris" by Megadeth
"Wake Up Dead" by Megadeth (w/just a bit of bass thrown in)