If it hadn't been for who?

I just had a song come on my media player that has a really good catchy tune. Everyone knows it and does this little barn dance jig to it when they hear it.

Then I started thinking about it some more. (I know, I need to turn off the brain every once in a while....)

If it hadn't been for Cotton-Eye Joe
I'd been married long time ago
Where did you come from where did you go
Where did you come from Cotton-Eye Joe

How messed up do you have to be to a) write those lyrics and b) sing them 13 times over?

Although, considering how successful the song was and the fact that it's on my computer, who's the messed up one here?