The world needs more artists like Jonathon Coulton because humor most definitely DOES belong in music! Skullcrusher Mountain is written from the point of view of an evil genius in love:

Here’s a snippet of the lyrics:

I made this half-pony half-monkey monster to please you
But I get the feeling that you don’t like it
What’s with all the screaming?
You like monkeys, you like ponies
Maybe you don’t like monsters so much
Maybe I used too many monkeys
Isn’t it enough to know that I ruined a pony making a gift for you?

Here’s a link to the full set of lyrics. Love it. It’s got a Tenacious D vibe to it, I think.