I found this video on youtube a few months ago. It is a group of Russian soldiers doing appropriately enough "The Dance of the Soldier". The music is Run DMC, but it matches up pretty good. These guys are really good especially the guy at 2:35 and the 2 guys after him.
We had a good laugh at the office by opening 2 Windows and playing other songs while the video was running with the sound off. Try it and let's see who can come up with the best/funniest song to go along with the video.