Looking for the name and a video clip of I believe a Russian Dance?

Question

in which the men squat and kick out their legs with arms folded over their chest. They often are heard saying "HEY" as the perform.

Answer 1

It is called Hopak, sometimes spelled as Gopak. It is Ukrainian. Other folk dances from Russia and Ukraine might include this move as an element as well, but it is most typical for Hopak, and Hopak is the most known.
Here is a couple of clips, you can find a bunch more if you search youtube with the word hopak or gopak:
http://www.youtube.com/watch?v=y_9hwBLwqW8&mode=related&search=
http://www.youtube.com/watch?v=i1EM428yNN0&mode=related&search=