Stars & Their Pets: Jordin's Happy CamperSparks and her pooch drop by a pet event in N.Y.C. Plus: Julianne Moore's city walk and more

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MILEY CYRUS & ASHLEY GREENE

It's an all-star puppy playdate! Cyrus and growing puppy Mate hang out with Twilight actress Greene and her tiny toy fox terrier, Marlo, on the set of LOL: Laughing Out Loud in Detroit, Mich., on Friday.