I understand very few of it, though it is just repeating the same all the time:
Unamos las manos ya,
la mouss (o música???) está en el bacalao
porque lo que quiero yo es...
baila, bailar...
It's something like...
Let's join the hand now
the mouss (or music??) is in the codfish
because what I want is
to dance, dance...
Bacalao is fish in spanish, codfish, but I'm not sure in this lyrics means that, because it's not a word I use besides its original meaning...
"La tolerancia de los ideales ajenos es virtud suprema en los que piensan." - José Ingenieros