That’s right, my little wolfcubs: covers in the plural.
Is it a gimmick? Yes, probably. But then, isn’t the original piece a gimmick?
So here are a few genre interpretations (and I’m not even including covers by the likes of Frank Zappa and Living Color):

First, the original:

Then, the famous Death Metal version:

The Tango version:

The Dubstep Remix:

For Shred Guitar:

Nola The Cat (on the Colbert report):

Acoustic Cover:

Flashmob version (my favourite):

And finally, what does the Furher think about this?: