Rachel Zoe Attends Kate Hudson's Halloween Party

It’s that time of year when people get to dress up in zany costumes and party down. If there’s one thing that celebs know how to do, it’s party down.

Kate Hudson threw a big Halloween party on Saturday night that included Rachel Zoe in a flapper costume, Courteney Cox as a witch (yeah, I can see that), hubby David Arquette as a warlock (yes), Winona Ryder as a mouse (uh huh), and Cindy Crawford dressed up as Amy Winehouse (ok, that’s hard to picture). Kate herself dressed up as a ’60’s flight attendant (channeling her ’60s flower-child mom, perhaps?).

Apparently, though, Gerard Butler as a cowboy drew the most attention. A Page Six insider reports: "All the girls at the party were lining up to talk to Gerard…he left with two very sexy vampires."

There were also guys dressed as cops who arrived at Hudson’s Brentwood home around 1 a.m. Unfortunately, they were REAL cops who asked the party-goers to take it indoors and quit disturbing the neighbors.