Cover versions that better the originals...

Is there such a thing as a cover version that betters the original or at least improves on it in some way?
To start us off I believe the following version of Ozzy's Mr. Crowley by Tim Owens and Yngwie Malmsteem from an Ozzy tribute CD beats the original hands down. Vocally its leagues above the original's limited range and the music has more crunch, sounding fresher as a result.
https://www.yousendit.com/download/Q01H ... MHMwTVE9PQ
and the original...
http://www.youtube.com/watch?v=pdlS7tab ... re=related
To start us off I believe the following version of Ozzy's Mr. Crowley by Tim Owens and Yngwie Malmsteem from an Ozzy tribute CD beats the original hands down. Vocally its leagues above the original's limited range and the music has more crunch, sounding fresher as a result.
https://www.yousendit.com/download/Q01H ... MHMwTVE9PQ
and the original...
http://www.youtube.com/watch?v=pdlS7tab ... re=related