A-List 5/31 Top Looks of the Week

WHAT SHE WORE

Jessica Chastain raised a glass at a Fondazione Nicola Trussardi cocktail party in a geometric Trussardi sheath, ladylike bag and leather Louboutins.

WHY WE LOVE IT This print can't be missed! The actress looked striking in her bold black and white design.

WHAT SHE WORE

Ricci supported the Fresh Air Fund in a peek-a-boo Thakoon cocktail dress and gold stilettos.

WHAT SHE WORE

Rossum attended the Emmy Studio in a pleated Bibhu Mohapatra print dress and pointy-toe Benjamin Adams London heels.

WHAT SHE WORE

Washington toted a chainstrap Roger Vivier bag with her black Calvin Klein Collection shift and leopard print pumps at the Variety Emmy Studio.

WHAT SHE WORE

Rose Byrne was pretty in Emilio Pucci’s long-sleeve minidress, delicate Jennifer Meyer rings and satin Salvatore Ferragamo pumps at the L.A. premiere of The Internship.

WHY WE LOVE IT Sweet and sexy! Sheer point d'esprit panels added seductive appeal to the actress's pastel wool dress.

WHAT SHE WORE

Harris took in a polo match in a floral Dolce & Gabbana needlepoint sheath and pastel stilettos.

WHAT SHE WORE

Cameron Diaz was white hot in a curve-hugging Roland Mouret design and ankle-strap sandals at a Monaco Tag Heuer bash.

WHY WE LOVE IT A crisp hue complemented the actress's signature bronze glow!

WHAT SHE WORE

From dress to shoes, Swank was decked in Giambattista Valli at Vienna’s Life Ball.

WHAT SHE WORE

At a press event for Germany's Next Top Model, Klum was at her sexiest in a black and gold Atelier Versace ensemble.

WHAT SHE WORE

Nicole Kidman sparkled in a silk Giorgio Armani column and diamond Harry Winston jewels at the Cannes closing ceremony.

WHY WE LOVE IT Way to go out with a bang! The festival juror wrapped things up in her most glam gown.

WHAT SHE WORE

Berenice Bejo attended the Cannes Zulu premiere in an embroidered Elie Saab cocktail dress, sparkling minaudiere and suede pumps.

WHAT SHE WORE

Palermo glowed on the Cannes red carpet in a gold Roberto Cavalli ensemble that she paired with a complementary bracelet and plumed clutch.

WHAT SHE WORE

Cotillard accented her long-sleeve Dior column with diamond Chopard jewels at the Cannes Film Festival premiere of The Immigrant.

WHAT SHE WORE

Thurman dined with the Cannes winners in a custom navy blue Giorgio Armani gown, statement jewels and flat Jimmy Choo sandals.

WHAT SHE WORE

In Cannes, Rosie Huntington-Whiteley took in the view wearing a pastel Chloe skirt, embroidered cotton blouse, python clutch and patent leather Brian Atwood pumps.

WHY WE LOVE IT Who would't want to look like this? The model looked effortlessly stylish in crisp separates.

WHAT SHE WORE

Decker screened Lot Party in a botanical print dress and sparkling sandals.

WHAT SHE WORE

At a Beverly Hilton pool party, Kelly accented her plunging Dior LBD with a diamond EF Collection bracelet and bright Jimmy Choo pumps.

WHAT SHE WORE

Biel stepped out in Cannes wearing a color block Roksanda Ilincic sheath, a complementary clutch and pointy-toe Louboutins.

WHAT SHE WORE

At the Hollywood screening of Now Your See Me, Fisher paired her embellished Sachin + Babi sheath with patent leather platforms.

WHAT SHE WORE

Gwyneth Paltrow kicked off summer at a Goop bash wearing a silk charmeuse shirt dress and leather belt from Prabal Gurung and edgy sandals.

WHY WE LOVE IT Nothing says "summer" like a fresh print and lightweight fabrics!

WHAT SHE WORE

Keibler raised a glass to Stella Artois in an asymmetric red dress and studded pumps.

WHAT SHE WORE

Roberts feted the Intermix 20th anniversary in a form-fitting Ohne Titel sheath and black accessories, including suede Jean-Michel Cazabat booties.