Gwen Stefani Kingston Grandparents
Gwen Stefani Kingston Grandparents

Gwen Stefani and son Kingston held hands on the way to a birthday party in Los Angeles on Saturday.

The two, along with son Zuma, were -- as always -- super stylish. Kingston's bringin' back the denim vest!

Dad Gavin Rossdale was absent -- but only because he's currently touring with his band, Bush.

See all the pics of Gwen, Kingston and Zuma in our gallery below.