Where the Stars Shop

From L.A.'s hottest boutiques to N.Y.C.'s coolest stores, find out where Katherine, Jessica, Ashlee and more stock their wardrobes. Then check out our editor's picks on what to buy for your own star-worthy wardrobe. By Melissa Liebling-Goldberg

SEPHORA

Katherine Heigl may have 27 Dresses, but when she needs to stock up on the best beauty brands, she heads for this megastore filled with makeup, body products, fragrances and more.