It appears that this escaped my notice because they did not coordinate with Bob Geldof's Band Aid/Live Aid umbrella group. This leads me to suspect that the money it generated may have gone mostly to real food relief.

I couldn't find much information on this project in English, but the Spanish wikipedia has a fairly thorough rundown of the song itself:
https://es.wikipedia.org/wiki/Cantar%C3%A9,_cantar%C3%A1s

As a side note, the pull-back from the TV monitor (using a fairly obvious travelling matte effect) to reveal Ricardo Montalbán really solidifies the 1980s visual style of this piece.