The 10 Best Dressed Stars of the Week Had a Very Specific Uniform

Updated on 9/7/2014 at 11:00 AM

Whether on the red carpet at international film festivals or hitting up the front row of the hottest runway shows at New York Fashion Week, the stars were most definitely out this week.

Oddly enough, though, the best dressed of the bunch seemed bent on wearing a very particular look. Aside from some pop-of-color outliers (most notably in the form of Cate Blanchett's vibrant purple trousers), it was all about black and white styling this week. From Olivia Palermo and Shay Mitchell's almost identical vest ensembles to Taylor Swift's playful Sass & Bide peplum, contrast was key — and it comes as no surprise considering how good such a uniform looks. As we see what the rest of this very fashionable month brings, see who's made it onto our top 10 best dressed list this week.

Uma Thurman

The actress looked ultra-ladylike in a black belted midi dress with Jimmy Choo heels and Chopard jewelry at the Venice Film Festival premiere of Nymphomaniac: Vol. II.

Naomi Watts

The star hit up one of New York Fashon Week's most exciting events, the Altuzarra for Target collaboration launch party, in a bold silk red wrap dress from the new collection.

Cameron Diaz

The Sex Tape actress gave her dark denim jeans a major boost with a zebra-print Balmain blazer and cool cutout booties at a Paris photocall for the movie.

Diane Kruger

Diane Kruger glowed in peach Prada — with added interest in the form of a bejeweled neckline — at the IFA Consumer Technology Trade Fair opening gala in Berlin.

Taylor Swift

Taylor Swift looked both sexy and sweet in this window pane Sass & Bide printed peplum top and white skirt at the Deutscher Radiopreis in Germany.

Cate Blanchett

Only the fashion-forward Cate Blanchett — attending the Sydney Theatre Company launch with husband Andrew Upton — can make a bright purple suit and Loeffler Randall silver mirrored oxfords look gorgeous.

Ashley Greene

The star brought out the glamour in this Antonio Berardi two-toned gown at the Venice Film Festival premiere of Burying the Ex.

Olivia Palermo

The street style star, who sat front row at the Desigual show at New York Fashion Week, showed her fashion expertise by pairing this long white vest over a cream and black printed sheath dress and nude lace-up sandals.

Shay Mitchell

Also looking her best in a vest was the Pretty Little Liars star at the BCBG Max Azria runway show.

Nicole Kidman

It's hard not to have hearts aflutter over the star's whimsical Valentino butterfly frock, which she wore to a screening Before I Go to Sleep in London.