Gwen Stefani�??s Park Workout with the Boys

Having a blast with her two young sons, Gwen Stefani took Kingston and Zuma out for an afternoon at the park in Beverly Hills, California on Monday (February 15). Not afraid to join in on the action, the No Doubt frontwoman began spinning around on a tire swing and even did a little tree climbing before taking a breather while the boys enjoyed some juice. As previously reported by Gossip