This from an email sent out to Ticketmaster customers who bought tickets to the Voodoo Festival, Memphis edition -- which is still happening on October 30th.
"While tickets will not be sold to the general public for the event in New Orleans, Voodoo Music Experience is offering previous ticket holders the opportunity to repurchase tickets (2 ticket limit) for $60 per ticket which will allow entry to the New Orleans event on Saturday. To purchase these tickets, you must use Ticketmaster confirmation number from your previous order and click [on the private NOLA event page link in the email]."
There's more information at the official voodoo music festival website. Thanks for all the emails about this event!