Rumors have been a-swirlin’ that the recently-divorced Katy Perry is dating noted philanderer John Mayer. While both sides have yet to comment on the allegations, the two were certainly getting chummy at Katy’s birthday/Halloween party this weekend! But…what exactly were they dressed up as? Take a look at these photos and let us know your guesses!

I mean, Katy is obviously vampire royalty. But is she a vampire queen? Princess? Empress?? Is she a Twilight vamp or just your run-of-the-mill Transylvanian resident? And what’s up with the crosses?

As for Mayer, he seems to be some sort of people hunter. But are those regular humans on that stick, or are they zombies? And what’s up with the prosthetic chin? Is he going for the “Woody Harrelson in Zombieland” look? I think I’ll go with that last guess.

What do you think of these costumes?

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