A Vampire Ball is being held...tonight? Right now? I don't know.
But here is the link:

http://www.gaiaonline.com/forum/gaia-towns/vampires-there-s-a-midnight-ball-visit-this-zip-code033967/t.34987759/

Wanna crash it? I can't make it but enjoy passing along the opportunity. mrgreen

EDIT: Also, the person hosting it was advertising it so you're not doing anything wrong by going there. It's public, not private.