Posted on Sun Feb 19th, 2012 4:08pm PDT
Gwen Stefani did what every mother hope for -- she ran and played and wore her boys down until they crashed and had a good nap!
The rockstar/fashion designer mom took Kingston and Zuma to the park for a friend's birthday party Saturday and after all the excitement, little Z was pooped!
SEE THE GALLERY Gwen Plays Games With The Boys
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