Kylie's arse in legal wrangle.

Heard about this on Ri:se this morning. Obviously it's Kylie's bottom to do with as she pleases, but surely she can't have the copyright? Or is she in fact the author of her posterior? I thought copyright had to do with the creator of the ahem 'work', so presumably unless Mr. and Mrs. Kylie have passed away, they have the only coherent claim to copyright on Miss Minogue's sit-upon. Not that I'm saying that isn't a very silly idea, mind.