After all, his real name is Jack Skellington Pumpkin King. His head is an actual jack-o-lantern, and his theme song is This is Halloween. You couldn’t ask for a better fit! It’s pretty obvious ...

The head was nothing but a pumpkin ... Irving combined the pumpkin and the jack-o’-lantern legends, but the pumpkin in his story was not carved into a grinning jack-o’-lantern.