A bump-wearing McPhee gets busy on the L.A. set of House Bunny. Plus: Ashlee Simpson, Natalie Portman and more

GREAT EXPECTATIONS

Katharine McPhee has some fun playing pregnant on the Los Angeles set of House Bunny on Tuesday. While she does want children one day, "it's fun to just pretend and look in the mirror," the singer told Entertainment Tonight of wearing the prosthetic belly once worn by Nicole Kidman.