Yakko's Nations of the World
I think most people my age will remember the cartoon "Animaniacs" from when they were growing up. I miss that show; Animaniacs had a lot of good things going for it like "Pinky and the Brain". This video here is the "Nations of the World" scene, where Yakko sings a song listing every country in the world.
I once had a friend, Jay, who had memorized this entire song and would sing it to show off his prowess. I wonder if he still has all the countries memorized?
Link (via Fazed)