Could be argentinian, at least it checks out. Every one of those is used over there, and the slang sounds about right.

A donde, by Cetu Javu.

A pretty catchy 80’s synth-pop song, in Spanish, by a German band.

Damn that would be so cool! It’s an excellent idea. And it doesn’t seem too farfetched (I have no idea tho), but I can see it as one of the next big things. You are on to something man. Also, username checks out.