Celebs Arrive At Gwen Stefani's Star-Studded Baby Shower

Gwen Stefani arrives at Hotel Bel-Air in Los Angeles for her baby shower.

A very pregnant Stefani gets out of her car at the hotel, ready to celebrate the arrival of her baby boy.

Gwen's pal Gwyneth Paltrow arrives at the shower.

Jessica Alba arrives carrying a diaper cake.

Toby Maguire's wife Jennifer Meyer arrives.

Chelsea Handler arrives to help celebrate.

Kate Beckinsale arrives at the hotel.

Gwen Stefani tweets a photo of a gorgeous flower arrangement.

Yum! Gwen takes to Twitter to show off her amazing shower cake.

Gwen tweets a photo of fun cake decorations.

Gwen tweets a photo of fun cake decorations.