My girlfriend found this one, so full credit should go to her. I had a look about and couldn't see it, so I'm hoping its not a repeat listing; http://www.dailymotion.com/gb/featured/video/x5n945_bumble-bboy_fun
I'm assuming that you're asking what the name of the song is? If that's the case its Walking Away by The Egg.
The animation is very smooth, I wouldn't be surprised if they guy who did this also did the Evolution of a dance with Prime.
I too am blown away by the sheer quality of the animation... I'm really uncertain whether it's really really sharp stop-motion, really really sharp CGI, or some combination of the two. I think this video has a lot more work in it than is immediately evident (more than meets the eye, natch)... even the setting is disarmingly mudane... someone's computer desk. But I think that's a trick, because the overall level of the camerawork, sharp image and the remarkably consistent lighting mark this as a professional grade effort. Hmmmm.... zmog
It's stop. There is some image altering in some parts but mostly it is a stop. And it is one of the best ones I've seen.