Lifestyle Style 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 By People Staff Published on July 7, 2008 08:00 PM Share Tweet Pin Email Trending Videos 01 of 12 SEPHORA John Shinn/ Bauer-Griffin 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. 02 of 12 BLOOMINGDALE'S INF When new parents Jessica Alba and Cash Warren are ready to spend, they head to the famous department store – where they could purchase everything from fashion to jewelry to furniture! 03 of 12 AMERICAN APPAREL Flynet Even stars like bargains! Ashlee Simpson swings out of the L.A.-based T-shirt chain, which is known for its low prices, outrageous ads and kaleidoscopic colors. 04 of 12 INTERMIX Neill J. Schutzer/Ramey Young style icons like Lauren Conrad can t get enough of this mini-chain’s mix of high-end designers, comfy T-shirts and sexy shoes. 05 of 12 MADISON Mullen/Respicio/Young/JFX Stars including Halle Berry love this chic Malibu boutique for their mix of fun fashion and high-end designers – all merged with a sophisticated sense of style. 06 of 12 RON HERMAN RevolutionPix/Ramey The couple that shops together, stays together? Paris Hilton and Benji Madden hit up Ron Herman for the latest in trends and their legendary jeans selection. 07 of 12 ARMANI EXCHANGE Bill Davis/Startraks Lucky for Eva Longoria Parker that she has her basketball-player husband Tony Parker to help tote all of her purchases from the affordable chain, which specializes in funky and sexy styles. 08 of 12 LOUIS VUITTON INF What to do while killing time in Paris? Well, if you’re Justin Timberlake, you head to the flashy new Louis Vuitton store on the legendary Champs-élysées to see all the latest designs from creative director Marc Jacobs. 09 of 12 BARNEYS NEW YORK ODuran/Fame Stars flock to this New York City transplant in Beverly Hills for edgy designer fashion, luxe bags, cult-beauty favorites and a to-die-for shoe department. Wonder what Mandy Moore’s got in those bags? 10 of 12 URBAN OUTFITTERS Most Wanted/Flynet Miley Cyrus is among the trendy teens flocking to this chain for edgy clothing that is ahead of the fashion curve – but won’t bust your budget. 11 of 12 YIGAL AZROUEL Daniel/INF Hilary Duff must have stocked up on the Israeli designer’s sexy little jersey dresses and well-tailored separates at his N.Y.C. flagship store. Good thing she has boyfriend Mike Comrie with her to do the heavy lifting! 12 of 12 KITSON Ramey The Robertson Boulevard store has become synonymous with flashy L.A. style and over-the-top star shopping sprees – as evidenced by Emmanuelle Chriqui’s sizable haul. Click here for an insider look at Kitson.