Harlow Madden and Sparrow Madden are sure lucky to have Nicole Richie and Joel Madden as parents. Not only did they take them to see Yo Gabba Gabba! at the Nolia theater, but they also got up on stage together and danced! But, they're not the only star parents who aren't afraid to go Yo Gabba Gabba! crazy for their kids. Gwen Stefani, Jack Black and Jessica Alba also participated!
Gwen took plenty pictures with her smiling boys Kingston and Zuma Rossdale and made sure they were having a good time.
And Honor Marie Warren wasn't the only one enjoying the show. Mom Jessica Alba also seemed to be having a good time. But it was Nicole and Joel who really went all out!