i think Geege will like Iceland best.

I didn't realize how much of hip-hop dancing, especially popping and locking, came from disco.

My favorite was the Italian guy who looked just like Luigi.

Yes! I loved the Italian guy!! :)

Many hip hop moves came from disco, as did several Michael Jackson moves!

I did enjoy seeing that popping and locking. :)

There also seemed to be a surprising amount of folk dance

Yes, I was surprised how multinational it was. 

So many ponies! What the hell was THAT, Iceland?!  Loved Japan.

Going back in! I'm born to be alive!

You're right, Japan was awesome. 

And now I can't get this song out of my head.

Haha I lived this and would have killed for Colombia's outfit!

Yeah, that outfit was pretty fabulous with the slits in the pants. 

500+ Reddit comments:

https://reddit.com/r/videos/comments/4o8g5y/1979_world_disco_dancing_finals/

And almost 10 years later the 80's gave us this: