OK, so I watched it this time! I saw one just like this about 5 years ago. All done backwards in stop-motion. A novelty group called Sttella, and the track was something like "Les tartines" (I think). It picked up an award from French music channel MCM.
I can't really see the Mexican vid doing all that much for the group, but truth be told, the track is not really up to it anyway. I'm sure there are groups reading this board with more interesting tunes and creative pals with a weekend to spend filming it.
Purely coincidentally, I found a rapper called Banaissa selling his clip on the web as a download for the princely sum of 25 eurocents (see
http://www.african-rap.com/. I'm not sure what the logic is (why not just give it away?), but I think it's a neat idea if people are willing to play ball.
My worry is that people film things that end up on shelves.