The weather must have been nice on both coasts this weekend -- because stars were all over New York and L.A. with their adorable kids in tow.
In Los Angeles, Hilary Duff stepped out with her super cute son Luca, the both of them keeping in comfy in sweats and pajamas.
Scott Disick and the scene-stealing Mason, Alyson Hannigan and newborn Keeva, Jessica Alba with Honor and Haven and Pete Wentz and Bronx were spotted all over L.A. as well.
And super-cool mom Gwen Stefani was also seen in sunny California -- where her kids Zuma and Kingston both played a little pre-Halloween dress-up. Zuma was seen wearing a Batman costume, while Kingston dressed up as a cowboy before enjoying some ice cream with mom.
Across the country in NYC, Matthew McConaughey and his brood looked like the perfect family as the actor, son Levi, daughter Vida and a very pregnant Camila all walked hand-in-hand along the Hudson River with their dog.
Katie Holmes and daughter Suri were also spotted in NYC, where she learned how to ride a bike with friends ... and Alanis Morissette stepped out with her son Ever.
They're all so cute! Check out the fun photos above.
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