Jenny McCarthy in a cat mask on her 40th birthday

Jenny McCarthy smiles (or shouts?) while wearing a bustier and a Halloween cat mask as she celebrates her 40th birthday on October 31, 2012. This was at the Gallery Nightclub inside Planet Hollywood Resort and Casino in Las Vegas, Nevada. 2012 was also the 18th anniversary of Jenny McCarthy being named Playboy magazine's Playmate of the Year for 1994.