From Lupita Nyong’o to Naomi Campbell, the Best and Worst Dressed of the Week

Keira Knightley rocked a little black dress, Lupita Nyong'o stunned in turquoise Gucci, and Kristin Chenoweth bared too much cleavage. Plus, more best and worst dressed of the week.

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Keira Knightley wore a black Proenza Schouler dress with a high-neck and subtle peplum to the London premiere of Jack Ryan: Shadow Recruit on January 20. She accessorized with black pumps (with a bowed ankle-strap) and a silver bow bracelet, both by Chanel.

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Tilda Swinton, the face of Chanel Pre-Fall 2013, sat front row at the brand's haute couture show on January 21 wearing a Pre-Fall 2013 look that consisted of a tan, star-printed cashmere sweater, a patterned knit skirt, white tights, simple black-and-white, two-toned heels, and an American flag scarf.

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For the SAG Awards on January 18, Lupita Nyong'o was radiant in a floor-length turquoise dress with artistic floral embroidered straps and coordinating bright eye make-up.

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Although it's not Alaia, Naomi Campbell still stood out in a metallic, silver and nude giraffe print dress from Michael Kors's Resort 2014 collection.

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Actress LeeLee Sobieski stunned while attending Dior's haute couture show on Monday in a silver and light blue jacquard dress, a loose grey coat, and bright blue pointed-toe pumps with a black ankle strap.

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Prada's Spring 2014 collection has been getting some serious face time recently, and the SAG Awards were no exception. Downton Abbey actress Michelle Dockery wore a green and black strapless mini-dress to the Entertainment Weekly Nominees party, clad with one of the brand's signature faces and a half rainbow.

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Ellie Goulding must have been freezing to death when she stepped out in NYC on January 22 in an oversized mesh football-jersey-style shirt. The singer paired her Rebecca Minkoff top with black leggings, boots, and a beanie.

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From Lupita Nyong’o to Naomi Campbell, the Best and Worst Dressed of the Week

Keira Knightley rocked a little black dress, Lupita Nyong'o stunned in turquoise Gucci, and Kristin Chenoweth bared too much cleavage. Plus, more of fashion's highs and lows.

The Fashion Beast Team