Stefani's 3-year-old takes a break from his scooter to play in a park in Irvine, Calif. Plus: Chace Crawford, Jessica Alba and more

JOY RIDER

Gwen Stefani holds onto mohawked son Kingston's scooter while the 3-year-old tot plays near their hotel in Irvine, Calif., where the singer is on a tour stop with No Doubt.