Just one of the kids! Nicole Richie and husband Joel Madden treated their 5-year-old daughter Harlow and 3-year-old son Sparrow to a trip to Disneyland on Sunday, March 31.

The couple celebrated Easter by walking around the park as a happy family of four. Madden, 34, pushed the kids in a double stroller as Richie, 31, walked beside him.

The Fashion Star mentor showed off her slim frame in tiny jean shorts for the outing. Her daughter Harlow dressed up as a pink princess, and Richie joined her by wearing Minnie Mouse ears.

The mother of two also shared a photo of her kids enjoying an Easter egg hunt that same day. But Richie and Madden had their own fun later that night. The couple, who wed in December 2010, posted photos of them posing together in Easter ensembles later that night.

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Richie donned big bunny ears in one photo and captioned the shot, "Adult Easter."

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