Gwen Stefani & Zuma Play at the Park

Gwen Stefani and her son, Zuma, spend a little quality time together on Saturday (October 1) at a park in London, England.

The No Doubt rocker, who celebrates her 42nd birthday on Monday (October 3) sat in the grass and watched as Zuma played in the park.

PHOTOS: Check out the latest pics of Gwen Stefani

Last week, Gwen invited Angelina Jolie and her little ones to come over for a playdate with her eldest son, Kingston!

Later in the week, Gwen was spotted taking Kingston and Zuma to check out the London Zoo.