Win or lose, you should know this song if you're an American. Watch out, it's NOT safe for work!

The United States Men's National Soccer Team will be taking on Belgium in the World Cup, this afternoon. You don't have to know the game to jump on this bandwagon, just watch the game and drink some beer.

World Cup fever has officially taken over, so don't fight it. Put on your best American outfit, wave your flag, and learn this song! #IBelieve

Again, NSFW!