This is the kind of thing that sets my heart aflutter so, naturally, I had to find out more.
When The Beatles crossed the pond in 1964 and the British Invasion gained full force, it's not surprising that young people from all over the world picked up on this new sound. After all, it was youthful energy personified. It must have really taken hold in Uruguay, as bands like Los Shakers - Hugo! Osvaldo! Pelin! Caio! - (who seemed more influenced by The Beatles) and Los Mockers (who chose The Rolling Stones as their inspiration), started to break into the mainstream in neighboring Argentina. (Apparently, musical invaders in South America weren't required to travel as far.) Oddly enough, these bands sang English lyrics.
And although there are definite parallels in hair, clothing, chord progressions and even stage mannerisms, these guys do manage to make it their own. Popular music has a history of constant "stealing", but I think that almost every "thief" winds up putting his or her own individual and cultural stamp on the finished product.
This next clip seems to be a scene from a movie, in which the boys are plucked from the production line at a soda bottling factory and given a ticket to the big time. I think that the referenced "Escala Musical" was roughly the equivalent of our "American Bandstand". (If anyone can translate the dialogue, that would be much appreciated!)
Here's yet another video (which I can't embed), of their first hit "Break it All", which is taken straight from the antics of A Hard Day's Night. (WARNING: It is completely awesome, and it will be stuck in your head for days.) It makes me incredibly happy to know that kids on this far-away continent were rocking out to the same sounds as kids in places like London and New York. (I'm sure that, had I been a teenager in Argentina in 1965, I would have been writing "Hugo" all over my school notebooks. He was dreamy!)