Hilary Duff: Inside Her Life

Peek inside the world of the Perfect Man star as she rocks out, hangs with her guy and dresses up. By Serena Kappes with Saryn Chorney, Ruth Andrew Ellenson and Dana Meltzer

SISTER, SISTER

"She won't go anywhere without me and I won't go anywhere without her," Duff says of Haylie. The sisters (modeling at an L.A. fashion show in February) are coproducing and costarring in the upcoming film Material Girls, in which they play wealthy siblings who lose their fortune.