There are a ton of "Gangnam Style" heavy metal videos out there on You Tube. But the best ones are the ones that sync up perfectly with the original video.

Vimeo.com has a good one by a guy named Jessie Wooten and there is one posted on Facebook by James Woodward.

The one above is by Templario, I'm not a big heavy metal fan but the fact that it matches up with the original video is brilliant!