Lots of celebs were out in costumes this weekend. Heidi Klum is always outrageous, she was the inside of a human body and showed up on a bloody gurney… Bette Midler and Stevie Wonder are randomly together at a “Hulaween” party… Josh Kelly and Katherine Heigl took their little princess trick or treating, Bethenny Frankel is Hello Kitty, and Gwen Stefani is Cinderella!