Looks of the Week

01 of 22

Victoria Beckham

Newly appointed UN Goodwill Ambassador Victoria Beckham spoke at the United Nations press conference in a cool blue tux with contrasting black lapels and a blazer lengthened to hit the knee. She paired her suit separates with a white top, a navy clutch, and classic black pumps.

02 of 22

Olivia Palermo

Olivia Palermo took her front row seat at the Nina Ricci spring/summer 2015 show during Paris Fashion Week in a burgundy turtleneck knit half-tucked into a matching pencil skirt, both by Nina Ricci, accessorizing with shades, an extravagant bib necklace, a snakeskin clutch and nude ankle-strap Gianvito Rossi pumps.

03 of 22

Dakota Fanning

Dakota Fanning struck a pose outside the Dior spring/summer 2015 show at Paris Fashion Week in a dark ink-blue embroidered Dior Haute Couture design with a diamond Dior Fine Jewelry ring and black Dior accessories.

04 of 22

Rosamund Pike

Gone Girl

star Rosamund Pike embraces monochromatism with shades of nude, starting with a sculpted Louis Vuitton dress that she topped with a leather Marni coat, black shades, and Marni ankle-strap patent leather pumps.

05 of 22

Leighton Meester

As the face of Japanese fragrance jewelry line St. Rillian, Leighton Meester attended a launch in Tokyo in a pretty color-blocked cut-out Emilio Pucci shift with black pumps.

06 of 22

Britney Spears

Britney Spears promoted her new lingerie brand in Germany in a sharp, crisp white suit separates, styling them with a sexy white lace camisole and white sandals.

07 of 22

Olivia Palermo

Olivia Palermo paid homage to NYC with a graphic cityscape top by Elie Tahari for Kohl's DesigNation, picking up on the color palette with a white flouncy midi skirt, a yellow clutch and black buckle-strap heels.

08 of 22

Sarah Jessica Parker

Sarah Jessica Parker made a major statement at the New York City Ballet 2014 Fall Gala in an exquisitely embroidered Mary Katrantzou masterpiece, styled simply with her usual stack of bracelets and a set of diamond drop earrings.

09 of 22

Kerry Washington

Kerry Washington arrived to the set of Good Morning America in a cheery yellow floral-embroidered frocks, color-coordinating her plum day-clutch (that she designed to benefit the Allstate Foundation Purple Purse) with a matching lip and Casadei pumps.

10 of 22

Jessica Chastain

Jessica Chastain was radiant at The Disappearance of Eleanor Rigby photocall from the 62nd San Sebastian Film Festival in a custom orange-and-lilac jacquard Dsquared2 cocktail dress with magenta flower-detail Louboutin sandals.

11 of 22

Lea Seydoux

Lea Seydoux hit the Paris premiere of Saint Laurent in a white Swarovski crystal-embroidered military-style Miu Miu dress with an orange gem-encrusted Miu Miu box clutch and matching ankle-strap peep-toes.

12 of 22

Chloe Grace Moretz

Chloe Grace Moretz committed to a nautical theme at AOL's Build Speaker Series for The Equalizer in a red-and-black striped long-sleeve tucked into a navy center-front slit skirt (with double gold round buttons) with black PVC pumps.

13 of 22

Jessica Chastain

Jessica Chastain arrived at the 62nd San Sebastian International Film Festival looking radiant in an optic white-and-suntan printed Michael Kors dress with flouncy hem. Shades and nude Michael Kors sandals served as the finishing touches.

14 of 22

Kerry Washington

For her guest appearance on Good Morning America, Kerry Washington struck bold in a cobalt blue technical crepe racer-front peplum Prabal Gurung design with black Louboutin pumps.

15 of 22

Chloe Grace Moretz

Chloe Grace Moretz made a darling appearance at The Equalizer premiere in an embroidered off-the-shoulder ink-blue wool-and-silk Dior Haute Couture creation, complete with a single diamond bracelet and silver strappy heels.

16 of 22

Rosamund Pike

Rosamund Pike hit the world premiere of What We Did on Our Holiday in a demure lace Erdem LBD and black pumps.

17 of 22

Diane Kruger

Diane Kruger was awarded the 'Officier des Arts et Lettres' by the French Culture Minister and selected a sophisticated navy embellished peplum Chanel Couture number with patent black pumps for the occasion.

18 of 22

Kerry Washington

Kerry Washington shimmered on the red carpet at Twitter's #TGIT premiere event celebrating Shonda Rhimes in a flirty metallic jacquard animal-print Mary Katrantzou skater dress, accessorizing with Bulgari jewelry, a pearlescent Kotur box clutch and satin white pumps.

19 of 22

Emma Watson

UN Women Goodwill Ambassador Emma Watson selected a sophisticated belted heather-gray silk Dior coat dress for the HeForShe campaign launch at the United Nations. Eva Fehren jewelry, a burgundy color-blocked Mary Katrantzou clutch, and black pumps rounded out her look.

20 of 22

Taylor Swift

Taylor Swift made a red-hot appearance at the iHeart Radio Music Festival in a white silk strapless top and red silk mini skirt, both by Calvin Klein Collection, complete with a Le Vian ring, Sethi Couture earrings, two-toned strappy sandals and a bold red lip.

21 of 22

Jessica Chastain

Jessica Chastain swept onto the red carpet at the Salome and Wilde Salome screening in a plunging buttercup yellow silk brocade Erdem gown.

22 of 22

Ashley Madekwe

Ashley Madekwe struck a pose in a slinky bronze satin Wes Gordon gown with tiny button detailing along the back and sides, adding bling with starry H. Stern earrings.