Gwen Stefani: Tree Tire Trio

Gwen Stefani plays and relaxes with her two boys Kingston and Zuma at a park on Monday (February 15) in Beverly Hills, Calif.

The 40-year-old No Doubt singer and fashion designer debuted her fall line for L.A.M.B. last week.

Back from the busy life of taking care of a new baby, Gwen also teamed back up with the rest of No Doubt who already started working on their next album.

“They were doing stuff before,” Gwen told Rolling Stone, “but things are kind of starting over, you know what I mean? We might revisit some of that stuff, but it’s the same old chase. It doesn’t matter how we get there – we want to get there, we will, and we’re having fun doing it.”

15+ pictures inside of Gwen Stefani spending quality time with her boys…