Claudia Schiffer

Gwen Stefani kept her Cannes Film Festival fashion coming this evening at the premiere of Sean Penn's This Must Be the Place, choosing a black-and-white gown with strategic cutouts. The singer went solo for the red-carpet debut after her husband, Gavin Rossdale, caught a flight out of nearby Nice this morning. Gavin and Gwen were together last night, though, for the amfAR Cinema Against AIDS fundraiser along with Kanye West, Bar Refaeli, and other stars. Sean was also by himself for today's unveiling of the film, without girlfriend Scarlett Johansson. Gwen's cycled through a collection of gorgeous gowns and dramatic outfits during her time on the French Riviera, but her trip hasn't been a completely formal affair — Gwen wore a bikini while enjoying the sun on a yacht with Gavin, Zuma, and Kingston this week.

This week, we got a dose of shorter hemlines and floral prints with celebs lightening up for Spring. On and off the red carpet, we spotted our favorites taking styled, seasonal cues and stepping out in minis, gorgeous color, and feminine print. We spotted Emmy Rossum embracing brighter hues on the red carpet, Brooklyn Decker going short in stripes, and Vanessa Hudgens channeling a little retro charm. Click through for the 10 celebrity looks we're currently crushing on.

Mary-Kate and Ashley Olsen threw on their latest fancy ensembles to attend the premiere of Le Comte Ory at NYC's Metropolitan Opera House last night. It was their second big evening out on the town this week, after they went out Wednesday to toast Vanessa Traina's Maje collection. The sisters were joined at the musical event by Claudia Schiffer, Claire Danes, and Hugh Dancy, as well as The Good Wife's Julianna Margulies and her always handsome husband, Keith Lieberthal. Mary-Kate and Ashley, who recently talked about sharing memories, clothes, and work in April's Vogue, have been busy making the social rounds since nabbing a prestigious CFDA nomination last week for their line The Row.

Last night in Paris, Michael Kors threw a party to celebrate the 30th anniversary of his eponymous brand. The star power was intense. There were models, singers, editors, It girls, actresses — and most of them were decked out in Michael Kors. We edited it down to the top looks from last night's glamorous party and need you to tell us who looked best. Click on our slideshow and vote now!

The US Embassy hosted a cocktail reception in honor of designer Michael Kors last night in Paris, with invitees including Jennifer Hudson, Mary J. Blige, Zoe Saldana, Amber Heard, and Anna Wintour. The soiree marked his line's 30th anniversary, and Mary J. wowed the crowd when she performed "Family Affair" to celebrate the occasion. The get-together was one of many taking place during Paris Fashion Week. Several celebrities have been stepping out in the City of Lights for parties and runway shows, including Chanel spokesmodel Blake Lively and Kanye West. Jennifer, who shows off her newly svelte figure in the latest Essence magazine, didn't hang around long after the evening's festivities, though — the singer was already back in the States this morning!

When Carine Roitfeld took the helm of Vogue Paris in 2001, she transformed the magazine into a chic, risk-taking publication. Today's news of her resignation surprised many people, including those who admired her unusual and unique style. We've put together 20 of the best covers from her reign at the magazine. Some are sexy, some are soft, but all have that Roitfeld touch we've come to love.

Source