REPORT CARDKate Moss, Carey Mulligan & More Best and Worst Dressed This Week (Photos)Isabel Wilkinson05.03.13REPORT CARDKate Moss, Carey Mulligan & More Best and Worst Dressed This Week (Photos)From Kate Middleton's peachy-clean look to Kate Moss channeling ‘Mob Wives,’ Isabel Wilkinson rounds up fashion’s highs and lows of the week. Isabel Wilkinson05.03.13 8:45 AM ETDave M Benett/Getty; D Dipasupil/FilmMagic; WPA pool photo by David Park; NCP/Star Max/FilmMagicFrom Kate Middleton’s peachy-clean look to Kate Moss channeling ‘Mob Wives,’ Isabel Wilkinson rounds up fashion’s highs and lows of the week. D Dipasupil/FilmMagic,D DipasupilBest Dressed: The Great MulliganIt’s hard to top the beaded Prada dresses Carey Mulligan wears as Daisy in The Great Gatsby, but the dress she wore to the film’s New York premiere wasn’t so shabby either. Mulligan looked stunning in a strapless, red Lanvin double-bonded dress, black Brian Atwood sandals with round and pear-shaped diamond-cluster platinum earrings, and a Tiffany Legacy diamond platinum ring. GettyBest Dressed, Should Have Been in ‘Gatsby’: Florence WelchWhile she contributed a song to the soundtrack, Florence Welch’s look at Gatsby’s New York premiere was such an enchanting throwback that she could have passed for a member of the cast. She wore a blue, beaded Miu Miu dress with an open back and a train. Sean Gallup/Getty for Paramount PicturesBest Dressed in a Two Piece: Zoe SaldanaZoe Saldana glowed at a Berlin photo call for Star Trek: Into the Darkness in a gray wool Calvin Klein skirt and top, which she paired with Jimmy Choo sandals and gold rings. Evan Agostini/Invision/AP,Evan AgostiniBest Dressed Man of the Week: Jay-ZThe brains behind the Gatsby soundtrack, Jay-Z looked perfectly turned out in a plaid suit at the film’s New York premiere. Stefanie Keenan/Getty for Prada Best Dressed, Flower Power: Katy PerrySo Prada had a good week. The official costumer of Gatsby, the brand hosted a star-studded party at its SoHo store that showed off costumes from the film. Even Katy Perry attended, who—after wearing a solid color to the White House Correspondents’ Dinner last week—has been looking surprisingly ladylike lately. She wore a head-to-toe look from Prada’s Fall 2013 collection. WPA pool photo by David Park,WPA PoolBest Dressed, Ready for Spring: Kate MiddletonThe duchess looked positively peachy in the custom-made ensemble she wore to visit the Naomi House Children’s Hospice in Winchester, England, on April 29. Gilbert Carrasquillo/FilmMagic,Gilbert CarrasquilloBest Dressed, Daenerys Would Be Proud: Emilia ClarkeThe Game of Thrones actress sure cleans up nice. Clarke wore a strapless, beaded Dior dress (and a Christian Louboutin clutch and shoes) to the 2013 Actor’s Fund Gala in New York earlier this week. Stephen Lock/i-Images/Polaris, via Newscom Best Dressed, 50 Shades of Gray: Victoria BeckhamBeckham looked ladylike in several shades of gray at the Vogue Festival on April 28, where she gave a speech about her life. NCP/Star Max/FilmMagicWorst Dressed, Fighting Butterflies: RihannaRihanna looked pretty fierce—and also pretty strange—in this Mary Katrantzou shirt, black shorts, and gladiator sandals while out on a stroll in New York. Palace Lee/PacificCoastNews.comWorst Dressed, Missing a Shirt: Cara DelevingneThe provocative British model looked positively ridiculous in the belly-bearing top that read “Tokyo” in big, red letters, a low-riding, baby-blue suit that revealed her men’s underwear, and high-top sneakers she wore to attend the Beyoncé concert in London. Dave M Benett/Getty,Dave M BenettWorst Dressed, Married to the Mob: Kate MossIt wasn’t Halloween, but Kate Moss channeled Mob Wives anyway in a strapless, black velvet dress, fur stole, and a pouf of hair that looked straight out of There's Something About Mary. Jennifer Graylock/GettyWorst Dressed, What Was She Thinking: Martha StewartOn top, Martha Stewart appeared to be out for a nice Sunday stroll. On the bottom, she was all Richard Simmons dance class.