How's about Midnight Special. Done by CCR, Johnny Rivers, and who knows who else, I forget who originally wrote it.
Pretty Woman, Van Halen originally by Roy Orbison.
Thats all I can think of for now.
Here's a couple more:
Rock & Roll Hoochie Koo Done By Rick Derringer & Johnny Winter
Originally by ?
Tobacco Road By Edgar Winter and some band in the 60's(Herman's Hermits?) or someone like that.
originally by ?
Jimi hendrix- Gloria originally by ---Dang it I know but can't think of 'em right now