Gwen Stefani and Gavin Rossdale treated their boys Kingston and Zuma to lunch in Beverly Hills yesterday. It was the latest fun-filled outing for Gwen, Gavin, and their sons following another family-filled weekend. Gwen and Gavin have been hanging close to home while working on their assorted ventures. Gwen and her guys from No Doubt are putting the finishing touches on their album, while Gavin was in the studio last week making songs of his own. Gwen's new Harajuku Lovers fragrance Super G will be out in August, and the limited-edition scent is the latest addition to Gwen's beauty, fashion, and audio empire.