She actually pop out a tit during this song on spanish TV in one of those special music/humor sketches shows in New Year's Eve night in 1987.
Being in that year means that spanish TV only had 2 channels at the time (both of them were public, and this show was on the important one), so everyone and their mothers was watching that show at that precise moment if you were celebrating New Year's Eve at home with the family (something very normal here).
15-20 million people maybe? Just imagine whole families of grandmothers and fathers, aunts, little kids watching this tit pop out live. Drama, fathers and boys with huge eyes, women shouting in disgust, newspapers talking about it the next day...
Still a famous moment of spanish tv, even remembered sometimes on those best of compilation programs till this day, and families still talking about it in new year's eve dinners thinking how insane was at that time and how normal would be now.
And here is the video of course:
http://www.youtube.com/watch?v=VS0kAYePFc4
Funny thing is that just 2-3 years after this, when the new private channels started on spanish tv, and were all controlled (and still are) by italian programmers, it was normal to watch juicy women jumping their boobs on tv, even on children's programs lol