PHOTOS: Gwen Celebrates Zuma's Birthday at the Grocery Store

What better way for a baby to begin his second year of life than by heading to the grocery store with mom? (After all... it's not like he's going to remember.) That's exactly what Gwen Stefani and baby son Zuma did on Saturday, when mother and son headed out to Bristol Farms in L.A. Their outing even included a visit to the park, where Gwen changed his diaper.

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