Parker Posey dressed up as Cat Scratch Fever.
Is that Amanda Lepore? No, it's Jessica Simpson!
Jennifer Garner as former first lady Nancy Reagan.
Mary-Kate Olsen dressed up in a classic gorilla suit.
Christina Ricci went as Terri Hatcher.
Chloe Sevigny is a magical leprichan.
Kelly Ripa dressed up a fake-baked TV star.
Cameron Diaz dressed up like a movie star.
Cate Blanchett dressed as the greatest puppet of all time-Madame!
Who is that robot with Marc Anthony?