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The Stefani-Rossdale clan are the epitome of adorable Fall fashion!

While heading to Grandma's house for Thanksgiving, Gwen and Gaven looked picture perfect ... with daddy holding son Zuma and big boy Kingston leading the way.

The No Doubt singer looked flawless as usual ... full face of makeup, killer boots and a kick-butt jacket.

We're lovin' how Gwen manages to keep her Harajuku Mini collection in the spotlight. Check out her black tote! Now THAT'S a savvy businesswoman.