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They're now a family of four! See how Joel Madden and Nicole Richie dote on daughter Harlow and son Sparrow
Credit: Charley Gallay/WireImage
Updated: Wednesday Jul 17, 2013 | 05:00 PM EDT
By: Karen Quan
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The Richie-Madden crew party it up Yo Gabba Gabba!-style with Muno and Brobee at a live show at L.A.'s Nokia Theatre on Nov. 27, 2010. "Greetings from Gabba-land!" Richie Tweeted.
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