Clueless costars Silverstone and Rudd reunite at an N.Y.C. movie premiere. Plus: Kate & Pippa, Hilary Duff, Taylor Lautner and more

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SHE'S ALL EARS!

Sporting Minnie Mouse ears and a smile, recent birthday gal Demi Lovato, 19, enjoys the magic of Disneyland during a Monday trip with friends.