Stars and Their Pets: Minka's Little Stair MasterKelly's fluffball gets into her Miami set trailer. Plus: Amanda Seyfried and Ryan Phillippe take a hike

Credit: Splash News Online

Updated: Friday Mar 18, 2011 | 06:00 AM EDT


Look who's ready to run! Facebook founder Mark Zuckerberg's leading lady gets her heart racing alongside 2-month-old Beast near their Palo Alto, Calif., home on Sunday.

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