Celebrities stepped out for a big event in Los Angeles, Calif. over the weekend, but it wasn't their typical red carpet appearance.

This time it was more of a family affair! From Jessica Alba and daughter Honor to Gwen Stefani and son Zuma, a number of celebs took their kids to see Yo Gabba Gabba Live! There's a Party in My City.

Alba tweeted following the kids show, writing: "#YoGabbaGabba was so fun. We got our silly's out and did the dancy-dance! My 'cool' days are over -wait a min... they never started"

The actress wasn't the only one getting her "dancy-dance" on. Nicole Richie and her husband Joel Madden brought their kids, Sparrow and Harlow, to the show, and even got up onstage. Richie tweeted: "Greetings from Gabba-land!"

Other celebs spotted with their kids at the party included Foo Fighters frontman Dave Grohl, actor Jack Black, actress Jaime Pressly and former "Dancing with the Stars" finalist Gilles Marini.

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