Never mind about her sexuality - could KT Tunstall be one of the undead, who would feast on our brains (hang on, that's zombies, isn't it?)
The 'music' she has released is enough to suggest that she feels the torture of innocent souls is a bit of a buzz. (And, incidentally, William Grundy, why do you think your girlfriend suddenly turned cold on the idea of going on holiday with you? It had nothing to do with her wanting to pay her way; she clearly was horrified that you chose to play her KT Tunstall during your date last night. Watch out, or Ed will have her away, too.)
Now, there's more evidence. Fangs, to be exact:
"But I was fairly vicious if I got into fights back then. I didn't bite anyone directly, but I did some nipping when I was just mucking around with my brother."
Now, on to our next subject: Sandi Thom - werewolf or not?