Fashion Look of the Day By InStyle Editors InStyle Editors Facebook Instagram Twitter 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. InStyle's editorial guidelines Updated on March 24, 2015 @ 04:59PM Pin Share Tweet Email Trending Videos Photo: Jamie McCarthy/Getty Images Look of the Day 01 of 22 Keri Russell Michael Buckner/Getty Images Keri Russell stunned at the Dawn of the Planet of the Apes premiere in a white structured crop top and full black midi-length skirt, both by Monique Lhuillier, with Jacob & Co. jewelry and black strappy heels. 02 of 22 Keira Knightley NCP/Star Max/GC Images Keira Knightley was a darling in a pretty powder blue pleated Prada dress that she styled with a blue gem-encrusted clutch and silver mirrored pumps. 03 of 22 Ashley Madekwe Donato Sardella/Getty Images Ashley Madekwe dined with Cushnie et Ochs at an intimate dinner hosted by Forward by Elyse Walker in a sleek Bordeaux silk crepe long-sleeve Cushnie et Ochs dress and a pair of white ankle-strap sandals. 04 of 22 Chloe Grace Moretz Pacific Coast News Chloe Grace Moretz made a bold statement at the 40th Annual Saturn Awards in a colorfully printed Dolce & Gabbana dress, complete with dark ankle-strap sandals. 05 of 22 Keira Knightley Broadimage Newswire Keira Knightley swept onto the red carpet at the New York premiere of Begin Again in a sheer navy bird-print tulle Valentino gown, complete with Tiffany & Co. diamond jewelry. 06 of 22 Jessica Alba Stefanie Keenan/Getty Images To celebrate the launch of The Honest Company at Target, Jessica Alba delivered a chic ensemble, integrating a Target brand with a striped Xhilaration top that she paired with a crisp white Rebecca Minkoff blazer, a black pencil, and sorbet Manolo Blahnik pumps. 07 of 22 Padma Lakshmi Ray Tamarra/GC Images Padma Lakshmi embraced summer whites as she stepped out in a breezy broderie LWD, styling it with an arm party stack of bangles, a ladylike tote, and ankle-strap sandals. 08 of 22 Andrew Toth/Getty Images As the queen of mixing prints, Olivia Palermo was at it again at the Shutterfly By Design event, tucking in a red graphic blouse into a pair of heavily embellished shorts. Bracelets on each wrist and her go-to bejeweled flats completed her look. 09 of 22 Diane Kruger Splash News and Pictures Diane Kruger was spotted at the premiere screening of The Bridge in playful black-and-white polka dot Roland Mouret separates-a crop top and pencil skirt-adding a dash of mixed prints with a striped clutch and a jolt of color with yellow Stuart Weitzman pumps. 10 of 22 Olivia Munn Pacific Coast News Olivia Munn promoted her movie Deliver Us From Evil, flaunting her enviably long, lean legs in a pair of white pleated jacquard Peter Pilotto shorts and styling them with a garden-fresh green-printed jacquard Peter Pilotto vest and patent yellow Christian Louboutin pumps. 11 of 22 Heidi Klum Pacific Coast News Heidi Klum stopped traffic in NYC in a sizzling red-hot sheath dress, electing to keep accessories to a minimum with a pair of shades and ankle-strap sandals. 12 of 22 Jennifer Garner Pacific Coast News Eschewing dresses, Jennifer Garner took on the one-piece wonder at the 5th Annual Thirst Gala in a black keyhole jumpsuit, complete with black open-toed heels. 13 of 22 Jennifer Aniston Mayer RCF / Splash News To support fiance Justin Theroux at The Leftovers premiere, Jennifer Aniston stepped out in a sexy black waist-cinching shirtdress that she amped up with a gold timepiece and studded sling-backs. 14 of 22 Emmy Rossum Owen Kolasinski/BFAnyc/Sipa USA Emmy Rossum hit the Kate Spade Saturday Summer Solstice Party in a pretty periwinkle blue cut-out Kate Spade Saturday dress, complete with a hot pink envelope clutch (also Kate Spade Saturday), hoops, and matching power blue ankle-tie pumps. 15 of 22 Camilla Belle Owen Kolasinski/BFAnyc/Sipa USA Camilla Belle also partied it up at the Kate Spade Saturday summer solstice event in a gray-and-white seamed flared dress, a two-bar wide green leather belt, a black mini satchel, and a plated bangle, all by Kate Spade Saturday. Her shoes of choice? Summery espadrille wedges. 16 of 22 Liv Tyler Walter McBride/Getty Images Liv Tyler took a darker glamorous approach for The Leftovers premiere. She selected a navy-black fringed Stella McCartney dress, complete with a dramatic smoky eye and black pumps. 17 of 22 Angelina Jolie Jun Sato/WireImage For the Tokyo premiere of Maleficent, Angelina Jolie gravitated toward her go-to color and selected a stunning skin-skimming strapless custom Atelier Versace LBD, along with diamond studs and sky-high patent platform pumps. 18 of 22 Jessica Alba S. Alemdar/Getty Images Jessica Alba was a golden goddess at the Magnum Golden Butterfly Awards in a gilded strapless Romona Keveza mermaid gown, complete with statement chandelier earrings and an embellished Jenny Packham box clutch. 19 of 22 Natalie Portman ChinaFotoPress/ChinaFotoPress via Getty Images Natalie Portman graced the 17th Shanghai International Film Festival closing ceremony in an elegant black Dior floor-sweeping number with a printed bodice. She kept accessories understated with a set of delicate drop earrings and a watch. 20 of 22 Taylor Swift AKM-GSI Taylor Swift stood out in a cheery floral Oscar de la Renta frock in NYC, further amping up the vibrancy with a Kelly green Elie Saab cross-body purse and matching pumps. 21 of 22 Jamie Chung Splash News Jamie Chung meshed a girly aesthetic with a sporty one at the 24 Hour Plays Los Angeles after party, benefiting Urban Arts Partnership, by pairing her floral pencil with a sexy lace crop top, coolly layering it with a black bomer. A delicate pendant and metallic ankle-strap Schutz sandals completed her look. 22 of 22 Olivia Palermo Jamie McCarthy/Getty Images Olivia Palermo hit the Janelle Monae concert as part of the Starwood Preferred Guest "Hear the Music, See the World" series in a casual sophisticated ensemble. She doubled up on denim with an Old Navy chambray shirt and distressed AG Adriano Goldschmied skinnies, and topped her look off with an ivory-and-black tuxedo Whistles blazer, a sunny Dior clutch and metallic strappy Aquazzura sandals.