Kei2000 (https://www.deviantart.com/kei2000) introduced me to the first song, and then I found the other countries. ^^
I keep seeing Canadians boasting about the fact that they have two main languages, like it's extremely rare for countries to have more than one main language, but that's not the case: Belgium also has two main languages, Switzerland has FOUR main languages, yet you don't see THEM boasting about it...
Another Prussia version (I couldn't choose, so I put both. ^^)