I was looking for that as well because it's such a cute funky little
song. It's not part of the official movie soundtrack, but if you read all
the end-titles, the tracks are all listed there. The one you want is
called Chambacu, performed by Aurita Castillo Y Su Conjunto. You
can easily find it and listen to it on e.g. Grooveshark. There it is in
many versions, including the one by Aurita Castillo.

bigandnoisy321, July 22, 2012; 5:22 PM