This has already made the rounds on literally all of the atheist blogs(you can find lyrics here, comment #51), but I have to post it here anyway. For, where else can you see Richard Dawkins with a giant anti-creationist robot, Eugenie Scott in a bikini, Sam Harris with a tricked-out grill, Christopher Hitchens with a big old blunt.
Anyway, no one seems to know where it came from. Was it made by a creationist to make fun of "Darwinians"? (Probably not.) Was it made by the pro-science people to make fun of the whole debate? (Probably.) In any event, it's great.