Gwen Stefani & Zuma: Playdate at the Park!

Gwen Stefani grabs hold of her youngest son Zuma as the two play in Coldwater Canyon Park on Monday (June 4) in Beverly Hills, Calif.

The 42-year-old No Doubt rocker and fashionista hoisted up her 3-year-old cutie and carried him around!

PHOTOS: Check out the latest pics of Gwen Stefani

Over the weekend, Gwen attended the 2012 Time for Heroes picnic to benefit the Elizabeth Glaser Pediatric AIDS Foundation. She was joined by Shailene Woodley at the event.

10+ pictures inside of Gwen Stefani and Zuma playing at a park…