Fashion Looks of the Week 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 October 25, 2013 @ 01:25PM Pin Share Tweet Email Trending Videos Photo: Josiah Kamau/BuzzFoto.com Looks of the Week 01 of 22 Jessica Alba Jordan Strauss/Invision for Cadillac and Who What Wear/AP Images WHAT SHE WORE Styled to the T, Jessica Alba worked an ivory long-sleeve box pleat Wes Gordon mini dress. Accessory-wise, she wore silver Joan Hornig deco earrings and silver-capped nude Jerome C. Rousseau pumps, and carried a studded black Tod's clutch. 02 of 22 Kate Middleton Rex/REX USA WHAT SHE WORE Middleton attended a gala dinner in an belted off-the-shoulder ink blue silk tulle Jenny Packham gown. 03 of 22 Diane Kruger Jeff Vespa/WireImage WHAT SHE WORE Always impeccably dressed, Diane Kruger stepped out in a graphic black-and-white asymmetric Cushnie et Ochs dress, styling it with pretty pastels: a blush pink clutch and mint green pumps. 04 of 22 Emmy Rossum Donato Sardella/WireImage WHAT SHE WORE Rossum sweetened up her look with a floral-embroidered black silk-organza and tulle Oscar de la Renta dress, pairing it with geometric Jennifer Fisher drop earrings, an emerald satin Christian Louboutin clutch and black pumps. 05 of 22 Taylor Schilling Gregorio T. Binuya/Everett Collection WHAT SHE WORE Also at the 2013 Whitney Gala, Schilling hit the red carpet in a contrasting floral Louis Vuitton tea-length dress, accenting it with a glittery minaudiere and gray peep-toes. 06 of 22 Krysten Ritter Jeff Vespa/WireImage WHAT SHE WORE Ritter looked red-hot in a fierce Thakoon dress with a strappy silk top and patent leather skirt. She styled it with equally fierce Jimmy Choos. 07 of 22 Natalie Portman PA PHOTOS /LANDOV WHAT SHE WORE At the world premiere of Thor: The Dark World, Natalie Portman dressed up a black cashmere top with a full silver jacquard skirt, both by Christian Dior. She accessorized with a black watch, diamond studs and black Charlotte Olympia pumps. 08 of 22 Carrie Underwood Theo Wargo/Getty Images for T.J. Martell Foundation WHAT SHE WORE Underwood accepted the Artist Achievement Award at the T.J. Martell Foundation's 38th Annual Honors Gala in a tone-on-tone beaded tulle periwinkle Randi Rahm cocktail dress with an embellished beige clutch and nude pumps. 09 of 22 Miley Cyrus J Graylock/Jpistudios WHAT SHE WORE Not one to shy away from the spotlight, Cyrus grabbed attention in an all-over sequined emerald Marc Jacobs halter gown. 10 of 22 Solange Knowles Neil Rasmus/BFAnyc/Sipa USA WHAT SHE WORE Knowles bared legs for days in black short shorts that she paired with an orange-and-white silk checkered Etro blouse and strappy heels. 11 of 22 Olivia Munn Evan Agostini/Invision/AP WHAT SHE WORE At the Fashion Group's International 30th Annual Night of Stars awards gala, Munn walked the red carpet in a plunging embellished Missoni gown with a graphic pattern at the hem. A neutral minaudiere Harry Winston jewelry served as the finishing touches. 12 of 22 Sandra Bullock Jason Kempin/Getty Images WHAT SHE WORE At the 17th Annual Hollywood Film Awards, Bullock rocked a Dsquared2 LBD with a sweetheart lace bodice, accessorizing it with Martin Katz jewelry and black strappy heels. 13 of 22 Lea Michele Jon Kopaloff/FilmMagic WHAT SHE WORE Michele showed off glimpses of skin in a flirty multicolor-threaded cut-out Calvin Klein frock, teaming it with a neutral Kotur clutch and white leather B Brian Atwood strappy sandals. 14 of 22 Lupita Nyong'o Nate Beckett / Splash News WHAT SHE WORE Nyong'o nailed a flawless red carpet look, opting for a sunny yellow J. Mendel gown with a keyhole detailing. Angular earrings and a silver Judith Leiber finished her look. 15 of 22 Ashley Madekwe Michael Kovac/Getty Images for ELLE WHAT SHE WORE Madekwe was white-hot in a pinstripe Thakoon dress with a waist detailing, adding hints of glint with David Yurman jewelry, a gold clutch and gold ankle-strap Saint Laurent heels. 16 of 22 Naomie Harris Michael Kovac/Getty Images for ELLE WHAT SHE WORE Last month, Harris sat in the front row at the Calvin Klein spring/summer 2014 show and singled out the label's ivory-and-black fringe cocktail dress for a red carpet event, accenting it with with black accessories. 17 of 22 Lupita Nyong'o Jon Furniss/Invision for BFI/AP Images WHAT SHE WORE At the 12 Years a Slave premiere, Lupita Nyong'o stole the spotlight in a black cut-out Christopher Kane dress, accessorizing with Kwiat jewelry, a metallic clutch and Christian Louboutin pumps. 18 of 22 Kate Beckinsale Jordan Strauss/Invision/AP WHAT SHE WORE Beckinsale radiated sexiness a red-hot Donna Karan draped dress with Joan Hornig ring earrings, Pluma bracelets, a black Jimmy Choo clutch and black-and-gold Casadei heels. 19 of 22 Hayden Panettiere Gilbert Flores/Broadimage WHAT SHE WORE At the 2013 Environmental Awards, Panettiere worked her curves in a Georges Hobeika dress with a sculpted black lace top and an orange skirt. She paired her look with a black-and-gold clutch and patent black pumps. 20 of 22 Anne Hathaway Jason Kempin/Getty Images for Cedars-Sinai Women's Cancer Program WHAT SHE WORE Hathaway looked sweet in a sleeveless J. Mendel shift with a floral lace panel, teaming it with a black Edie Parker clutch and black pumps. 21 of 22 Reese Witherspoon Jason Merritt/Getty Images for The Pirch WHAT SHE WORE Witherspoon hit the store opening of The Pirch in an Antonio Berardi dress with black lace top and a jacquard printed skirt, styling it with black Manolo Blahnik pumps. 22 of 22 Selena Gomez Josiah Kamau/BuzzFoto.com WHAT SHE WORE At The Late Show with David Letterman, Selena Gomez arrived in a casual-chic getup: A white tee tucked into olive buckled Rachel Zoe Collection leather pants. She completed her look with oversized shades, gold Melinda Maria hoops, a black studded carryall and black kicks.