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ZUMA ROSSDALE
Gwen Stefani and her big boy – who turns 4 on Aug. 21 – sport matching smiles (and white tanks!) while out and about at L.A.'s Universal City Walk on July 15.
More from PEOPLE
Gwen Stefani and her big boy – who turns 4 on Aug. 21 – sport matching smiles (and white tanks!) while out and about at L.A.'s Universal City Walk on July 15.