Gwen Stefani, Gavin Rossdale, and their sons Zuma and Kingston headed to Gwen's parents' house in LA yesterday to celebrate Easter. The boys were in their Sunday best as they arrived for the visit, and Gwen also looked Spring ready in a seersucker outfit carrying a pot of yellow tulips. The family of four was back home in California for the holiday weekend after taking a trip to Mexico at the start of the month. Gavin has been busy jetsetting between his band and big-screen commitments for months but joined his love ones for the south-of-the-border getaway during a rare break. After returning home with them to spend Easter as a family, he'll be hitting the road again with a show in Illinois scheduled for tomorrow night. Gwen is also gearing up for a busy 2012 of her own — No Doubt's long-awaited reunion album slated for release before the year is out.