Nicole Richie and Joel Madden accompanied their kids, Harlow and Sparrow, to the Yo Gabba Gabba! live show in LA yesterday. Nicole gave Sparrow a ride on her shoulders, as Joel followed close behind carrying Harlow in his arms. Also in attendance was Halle Berry and her daughter, Nahla Aubry. It has been quite a week for the mother-daughter duo. On Thanksgiving, Halle's ex and Nahla's dad Gabriel Aubry fought Olivier Martinez, Halle's fiancé, after words were exchanged when Gabriel dropped Nahla off for the holiday. Both men were treated at the hospital, and Gabriel was arrested. In contrast, it has been a relaxing week for Nicole. She hosted a Thanksgiving dinner at her home and, earlier this week, took a dressed-up Harlow to Bronx Wentz's birthday party.