Gwen Stefani: Kate Hudson's Halloween Party!

Gwen Stefani and a milllion other celebs turn up for Kate Hudson‘s huge Halloween party on Saturday night (October 30) in Pacific Palisades, Calif.

Also in attendance at the party, which served FatBurger food: Kurt Russell (the longtime boyfriend of Kate‘s mom Goldie Hawn), Kate‘s stylist Rachel Zoe as Indian warrior, Nicole Richie as Margot Tenenbaum (with fiance Joel Madden), Amanda Seyfried, David Spade, Steven Tyler, Leslie Mann (with husband Judd Apatow), Ryan Phillippe, Shenae Grimes, Entourage‘s Kevin Connolly, Adam Sandler (with wife Jackie), and Gwen‘s No Doubt bandmates Adrian Young as Princess Leia and Tony Kanal (with expectant mom Erin Lokitz).

Can you make out anyone else??

20+ pictures inside of Kate Hudson‘s Halloween party…