People Pets
Stars & Their Pets: Julianne's Leading LadyThe former DWTS star and her pup take the lead Tuesday in N.Y.C. Plus: Katharine McPhee's bundled beauties
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PRISCILLA CHAN
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.
