Gwen Stefani Pictures With Zuma and Kingston at Park

Gwen Stefani stocked up at an LA Whole Foods Market Saturday for a park picnic with her sons. She rounded up boys Kingston and Zuma Rossdale for the alfresco meal and afterward, joined them on the swing set and jungle gym. Gwen broke from studio time with her band No Doubt for the adventure with Kingston and Zuma. Gwen has another big event happening soon. Gwen Stefani's heading to American Idol Wednesday to mentor contestants during '80s night with her bandmate Tony Kanal.

Gwen's husband Gavin Rossdale has likewise been focusing on his music following a brief Hollywood detour. He logged a few days on the LA set of Sofia Coppola's The Bling Ring last week, then headed to London. He's now in Mexico for a string of dates. He wrote on Twitter last night, "Mexico rules — finally decompressing — what an odyssey just getting here."