Gwen Stefani & Gavin Rossdale: Sunny Monday with Zuma!

Gwen Stefani and Gavin Rossdale walk down the sidewalk and enjoy the sunny day on Monday (October 31) in Los Angeles.

Gavin, who just turned 46 over the weekend, carried his son Zuma while Gwen, 42, walked behind. Happy belated birthday to you, Gavin!

PHOTOS: Check out the latest pics of Gwen Stefani

Over the Halloween weekend, Gwen attended Kate Hudson‘s annual spooky bash! She dressed up as the Disney princess Cinderella. Also in attendance at the party were Emma Roberts, Chord Overstreet, Alessandra Ambrosio, Nicole Richie, Zooey Deschanel, and more!

FYI: Gwen and Gavin are using their Britax B-Nimble stroller in Cowmooflage!