Gwen Stefani With Kingston and Zuma at Underwood Farm

Gwen Stefani brought her boys to the Underwood Family Farm in LA's Moorpark on Saturday afternoon. She had a little help with Kingston and Zuma as they checked out the area. Kingston played in the sandbox and rode around on a three-wheeled bike while Zuma got a lift in a wagon and took a spin on a pony at the petting zoo. Kingston capped off the visit with a popsicle, which he enjoyed while showing off his blond mohawk. The Stefani-Rossdales have visited the produce-filled location before, and Rachel Bilson has also been spotted picking vegetables there. Gavin didn't join his family for the outing since he's been busy working on new music and performing with Bush lately. He'll take the stage in LA this week before heading to the East Coast with his band at the end of the month.