The national anthem is not funny. But videos of people messing up the national anthem is pretty funny.
We all think we know the national anthem, till it comes time to sing it out loud in front of a bunch of baseball fans. And once you mess up one lyric, the whole thing really snowballs out of control.
Don't believe me? I mean, it's ok to be skeptical about things you read on the internet. But here's some actual evidence of how badly the national anthem can go. Boom, proof.