The world of Fallout: New Vegas is a bleak and empty one. Nuclear holocausts will do that to a people. What everyone in the game needs, then, is a little dancing.
This mod brings a little dancing. Actually, it brings a lot of dancing, importing a ton of motion-captured dance routines into the game, then giving the player the ability to press a key and have the characters on screen get down.
It's of course for only the PC version of the game, and you can download it here.