Aubrey O’Day, Hugh Heffner and a host of Playboy Bunnies hosted a party to celebrate Aubrey’s brand new Playboy spread. Click here to peep the cover if you haven’t already. Other celebrity attendees included Russell Simmons, D. Woods and Paris Hilton. Oh by the way, did we mention that the party also doubled as a birthday party for O’Day? Hey, it’s a recession … she’s killing two birds with one stone! Anyway, continue reading for the rest of the pics.