Kate Bosworth

Bosworth attended the Whitney Art Party in head-to-toe black including a shirred Theyskens’ Theory LBD and satin sandals.

Ashley Greene

Greene presented at the CMT Music Awards in a plumed Donna Karan Atelier custom cocktail dress and strappy gold sandals.

Carrie Underwood

Underwood hit the CMT Music Awards in a paillette-covered Randi Rahm minidress accented with diamond Tiffany & Co. jewelry, a black Swarovski clutch and Gio Diev ankle-cuff booties.

Lily Collins

Collins feted Chanel's Little Black Jacket Exhibition in white separates, gold bangles, a metallic clutch and ankle-strap heels.

Kristen Bell

Kristen Bell hosted the CMT Music Awards in an embroidered tulle Reem Acra gown, rose gold Graziela drop earrings and a gilded minaudiere.

Dakota Fanning

At the American Film Institute Gala, Fanning stepped out in a belted Gucci gown that she teamed with gold jewelry and a studded clutch.

Fergie

Fergie was honored at the amfAR Inspiration Gala in an onyx embroidered Calvin Klein Collection LBD, the label's satin wristlet clutch and black pumps

Olivia Palermo

Palermo hit the red carpet for the Milan Convivio Charity Exhibition in a long-sleeve maxidress, burgundy belt, suede clutch and patent leather sandals.

Jessica Chastain

Chastain styled her belted black dress with an Aurelie Bidermann statement cuff and ankle-strap heels at the New York premiere of Madagascar 3: Europe's Most Wanted.

Jennifer Aniston

Jennifer Aniston toasted Shirley MacLaine's AFI Life Achievement Award in a high-slit Burberry design, studded clutch and snakeskin sandals.

Padma Lakshmi

Lakshmi strolled N.Y.C. in a white knit dress, silver cuff, leather bag and sporty Alexander Wang sandals.

Sarah Jessica Parker

Parker arrived for the Forget Me Not Gala in a teal shift that she accessorized with a velvet blazer, statement jewels and pointy-toe pumps.

Beyonce

Beyonce dined in Paris sporting bright Surface To Air separates. She completed the look with a graphic Alexander McQueen clutch and Prada's rosette heels

Paula Patton

Patton presented at the Sundance Institute's annual benefit in a colorful print dress, stacked bangles and embellished peep-toes.

Jessica Chastain

Jessica Chastain exited Live! with Kelly in Carven separates, Jack Vartanian studs and patent leather Brian Atwood pumps.

Karolina Kurkova

Kurkova strode the streets of New York in leather leggings topped with a print blouse and a double-breasted coat. She accessorized with a black tote and Monika Chiang sneakers.

Zoe Kravitz

Kravitz worked a chic black and white ensemble at a New York Chanel bash.

Beyonce

Beyonce shopped Paris in a printed Carven blouse, bright Vionnet trousers and pointy-toe Louboutins.

Katy Perry

Perry left London's Market Cafe in a bow-neck midi dress and black ballet flats.

Julianne Hough

Julianne Hough hit the Miami Rock of Ages premiere in a leather dress and neutral peep-toes.

Selena Gomez

Gomez launched her fragrance in seashell print Versace separates, a white Vanessa Bruno blazer and nude pumps.

Julianne Hough

At the L.A. Rock of Ages premiere, Hough brightened things up in a citrine Kaufmanfranco column and gold Stephen Webster danglers.

Lea Michele

Michele worked all angles of her silk Emilio Pucci gown at the Chrysalis Butterfly Ball.

Amanda Seyfried

Seyfried attended the Tony Awards in an embellished Givenchy cocktail dress that she paired with a red clutch and belt, vintage Fred Leighton jewelry and patent leather sandals.

Jessica Chastain

The actress took the stage at New York's Beacon Theatre in a beaded Marios Schwab cocktail dress, yellow diamond Harry Winston earrings and satin Giuseppe Zanotti peep-toes.

Anne Hathaway

Hathaway feted Stella McCartney's spring presentation in a slim white suit, printed tee, a chain-strap bag and nude heels.

Emily VanCamp

VanCamp teamed her shirred Monique Lhuillier top and high-waist Rachel Zoe skirt with gold jewelry and snakeskin pumps at a Monaco event for Revenge.

Emily Blunt

In Germany, Blunt attended a The Five-Year Engagement press event in a red Roksanda Ilincic sheath and peep-toe booties.

Nina Dobrev

Dobrev arrived at a Max Mara cocktail party in a white ensemble that she styled with a turquoise clutch, a David Yurman bracelet and shimmering sandals.

Solange Knowles

Solange Knowles got into the carnival spirit at Stella McCartney's spring preview in the designer's paisley minidress, silver accessories and strappy sandals.