Stars and Their Pets: Miley Cyrus's Park PlaceCyrus brings Ziggy out to play in Philadelphia. Plus: Josh Hutcherson and dog Driver make a move in Sherman Oaks, Calif., and more

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MILEY CYRUS & LIAM HEMSWORTH

Touch down! Hemsworth lets Ziggy stretch her legs after a Tuesday flight to Philadelphia, where the adorable pooch accompanied mom Cyrus on a park visit the next day.