Jonathon Coulton sings that, and as you may have guessed, most of the other songs on my profile.
For a while, he did something called "Thing a week", where he posted songs like those on a blog, weekly, for maybe a year. All of his work was released into the creative commons, which means it's free to download, and you can put it in movies, podcasts, and the like without having to worry about copyrights.