Yes, somebody back in 2011 had the brilliant idea to replace the original background song with the national anthem of Greece. And guess what. It's one of the most favorite videos of Greek nationalists and neonazis. Just have a look at the comments to see it by yourself.

And for those who don't know Greek, the video description is "Cat is listening the national anthem!!! A real Patriot cat!!"

Γάτος ακούει τον ενικό ύμνο!!! Ένας πραγματικός γάτος Πατριώτης!!