The Fashion Police played a hilarious game of "Guess Me From Behind," and it was all about beach back sides!
The first picture was a tan, bootylicious mama and her kid with snorkeling gear in the ocean. Joan Rivers jokes, "It could be an old picture of Katie Holmes, with Tom Cruise on the honeymoon, but I don't think so."
Oh Joan! You may be surprised to find out what hot celeb it really is!