Gwen & Gavin Are Party Parents

Party time, excellent! Rockin' couple Gwen Stefani and Gavin Rossdale were totally in a partying mood for a pal's birthday party, herding along their young son Kingston in L.A. yesterday.

At one point, Gavin tried to hide his face behind some presents, but that won't work when you're one part of a super famous celebrity duo!

OK! GALLERY: GWEN & GAVIN GO OUT & GIVE THEIR BOYS A LIFT

Kingston was so excited for the party, he stripped off his T-shirt to go for a spin on a tricycle!

OK! GALLERY: GWEN & GAVIN GRAB SOME GRUB WITH THEIR BOYS

Mama Gwen looked like she was all business, but hey, parenting can't be all fun all the time, right?