Fashion Looks of the Week By InStyle Editors InStyle Editors Instagram Twitter InStyle's mantra is "Everybody's in," and that means anyone who finds their way to our stories should find themselves reflected in them. We prioritize bringing the right writer to every story and sometimes collaborate as a team to ensure we're including points of view across race, gender expression, body size, skin and hair type, and more. Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. For more about our team, click here. InStyle's editorial guidelines Updated on March 27, 2015 @ 10:33AM Pin Share Tweet Email Photo: Matt Baron/BEImages Looks of the Week 01 of 22 January Jones Wenn At the 2nd Annual Rebel With a Cause Gala, January Jones reached for a navy-and-white striped Topshop mini dress, paired with a mirrored Jimmy Choo clutch, understated jewelry (including one ear cuff) and black strappy sandals. 02 of 22 Shailene Woodley Matteo Prandoni/BFAnyc/Sipa USA Woodley is on a stylish streak! She looked poised and chic in a black sleeveless crepe Elie Saab jumpsuit with a contoured waist and sheer bodice. A bold lip and gold mirrored Rupert Sanderson pumps completed her look. 03 of 22 Margot Robbie Charley Gallay/Getty Images Robbie hosted a Carmella dinner wearing an ensemble by Carmella: an off-the-shoulder blouse tucked into a pair of flowy high-waisted silk pants with side slits. Jacquie Aiche jewelry and an embellished orange clutch served as her accessories. 04 of 22 Camilla Belle Jon Kopaloff/FilmMagic At the HampM Conscious Collection Dinner, Camilla Belle celebrated the brand's eco line in a white floral beaded asymmetrical Osman cocktail dress that she styled HampM Conscious Exclusive chandelier earrings and metallic Christian Louboutin heels. 05 of 22 Kate Mara Brian Dowling/Invision/AP Mara was also present at the H&M Conscious Collection Dinner wearing a ruffled print blouse and cream embroidered pants, both from the H&M Conscious Collection line, along with Jacquie Aiche earrings, pink floral Burberry Prorsum clutch and python pumps. 06 of 22 Jennifer Lopez Courtesy Photo Lopez worked her curves in a seafoam blue cap-sleeve SAFiYAA dress with gazaar inserts. Hoop earrings, a selection of rings, embellished Jimmy Choo pumps served as her accessories. 07 of 22 Emmy Rossum Jon Kopaloff/FilmMagic Rossum swept everyone away in a black floral H&M high-low gown, with a vintage Sethi Couture diamond pendant necklace, a Carrera y Carrera diamond ring, a mirrored Aldo clutch, and black ankle-strap Stuart Weitzman sandals. 08 of 22 Shailene Woodley Paul A. Hebert/Press Line Photos/Splash News WHAT SHE WORE All eyes were on Shailene Woodley at the Los Angeles premiere of Divergent as she sparkled in her fully beaded bronze one-shoulder Elie Saab Haute Couture gown with draped detailing and a sexy thigh high slit. She kept the metallic theme going with gold foil Stuart Weitzman sandals 09 of 22 Naomie Harris Chris Jackson/Getty Images Harris looked pristine in a crisp white Burberry blazer and pencil skirt, accessorizing with a black Smythson clutch and black Stuart Weitzman sandals. 10 of 22 Dianna Agron Jason LaVeris/FilmMagic WHAT SHE WORE Agron celebrated the 100th episode of Glee in a pretty color-blocked pastel Miu Miu design, styled with a stack of bangles, an oversize nude clutch, and chunky white platform sandals (both also by Miu Miu). 11 of 22 Eva Mendes Tommaso Boddi/WireImage WHAT SHE WORE Mendes launched her second collection for New York & Company wearing one of her designs (a navy-and-white floral dress) for the occasion, styling her look with a navy Smythson clutch, a pile of gold bracelets, and gold floral lace Bionda Castana pumps. 12 of 22 Kiernan Shipka Splash News and Pictures The budding style star Shipka wore a sheer short-sleeve pleated Valentino number along with Dana Rebecca Designs earrings, EF Collection bangles, black triple-ankle-strap Jimmy Choo heels. 13 of 22 Jennifer Connelly Splash News WHAT SHE WORE At the Madrid premiere of Noah, Jennifer Connelly showed off her stems in a mint green leaf embroidered Giambattista Valli Couture mini dress with a ruby encrusted neckline, styling her look with nude ankle-strap sandals and a bold red lip. 14 of 22 Shailene Woodley Tony DiMaio/startraksphoto WHAT SHE WORE Woodley shimmered in a blue-and-silver floral jacquard Preen sheath dress with a waist-cinching chartreuse skinny belt and black strappy heels. 15 of 22 Emma Watson Ramey Photo WHAT SHE WORE Watson took on the black-and-white trend in a plunging long-sleeve two-toned J. Mendel jumpsuit, adding a gold cuff and Gianvito Rossi heels to complete her look. 16 of 22 Scarlett Johansson VILLARD/REX USA WHAT SHE WORE Mom-to-be Johansson stepped out looking utterly radiant in scarlet red Michael Kors suit and black tank. crop top and matching midi skirt, with black ankle-strap sandals. A gold statement necklace, a black clutch, and silver Schutz heels rounded out her look. 17 of 22 Emmy Rossum Mike Coppola/Getty Images WHAT SHE WORE At a cocktail party, Emmy Rossum added a whimsical touch to her look with a charming blue star-and-bird print Andrew Gn dress paired with House of Lavande chandeliers, a gunmetal Rodo clutch, and black pumps. 18 of 22 Taylor Schilling Daniel Robertson/startraksphoto WHAT SHE WORE Schilling kept her look simple at PaleyFest 2014 in a black-and-white Theory skater dress and black pumps. 19 of 22 Eva Longoria Gustavo Caballero/Getty Images WHAT SHE WORE Longoria dropped jaws in a red-hot body-hugging sleeveless David Koma dress that she accessorized with hoops, a scriped "Eva" necklace, a selection of bangles, and nude T-strap sandals. 20 of 22 Jordana Brewster Noel Vasquez/Getty Images WHAT SHE WORE While filming Extra, Jordana Brewster looked radiant in a fiery red Sachin + Babi pantsuit paired with a white J Brand camisole and gray pumps. 21 of 22 Sienna Miller ZumaPress WHAT SHE WORE Miller honored the life and work of Sir David Frost, a legendary English journalist, in a cream dress that she styled with a mint floral clutch, gold bracelets (one on each wrist), and multi-colored gold-capped sling-backs. 22 of 22 Allison Williams Matt Baron/BEImages WHAT SHE WORE Williams took on a more casual approach for her latest Girls outing in a look by Brunello Cucinelli, effortlessly half-tucking a sheer white blouse into drawstring tapered trousers. As for shoes, she went with nude pumps.