Zooey Deschanel dressed as a women from the 60′s

Ali Larter buzzed into the party dressed as a bumble bee.

Nicole Richie dressed got her Halloween on as J-Lo.

Rashida Jones looks sweet dressed as a Cherry Blow-Pop.

Chaz Bono and David Arquette at Hudson’s Party. David was dressed as the king himself, Elvis.

Gwen Stefani dressed as a beautiful princess… of course!