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

MAKING HER MARK

Seventeen magazine cover model Ashlee Simpson makes some lucky girls' day with an autograph session and a meet and greet in Los Angeles on Tuesday.The singer hung out with the back-to-school contest winners during a day of beauty at pal Ken Paves's salon.