Our PicksFrom Lena Dunham to Taylor Swift: Best and Worst Dressed of the Week (PHOTOS) Isabel Wilkinson01.11.13Our PicksFrom Lena Dunham to Taylor Swift: Best and Worst Dressed of the Week (PHOTOS) From Helen Mirren’s show-stopper to Kerry Washington’s checks and bows and the ‘Girls’ girls all cleaned up, a look at fashion’s highs and lows this week.Isabel Wilkinson01.11.13 9:45 AM ETFrom Helen Mirren’s red show-stopper to Kerry Washington’s checks and bows, see fashion’s highs and lows of the week. By Isabel Wilkinson. Charles Eshelman/GettyBest Dressed, in Chainmail: Allison WilliamsThey may not look like much on the show, but boy, can the girls of Girls clean up. Allison Williams led the pack in a gold Altuzarra bustier and black skirt, Fred Leighton drop earrings, and Giuseppe Zanotti heels. Jon Kopaloff/GettyBest Dressed, Setting the Gold Standard: Naomi WattsTwo actresses in gold chain-maily things, separated by 3,000 miles! Naomi Watts, at the People’s Choice Awards at the Nokia Theatre in Los Angeles on Wednesday night, in an Alexander McQueen dress, Jennifer Meyer jewelry, and Jimmy Choo bag and shoes. Jason Merritt/GettyBest Dressed, Fastest Dress Turnaround: Emma StoneIt’s hard to find Emma Stone not wearing Lanvin. And this was no exception. At the Palm Springs Film Festival on Saturday, the actress wore a red, pre-fall 2013 Lanvin dress, which debuted just hours before in New York. Stephen Lovekin/GettyBest Dressed, Prim and Proper: Jessica ChastainLook at everyone’s goofy smiles as they stare at Jessica Chastain at the New York Film Critics Circle Awards in New York on Jan. 7. But she did look good: the Best Actress nominee wore a black Oscar de la Renta 2013 pre-fall dress and Christian Louboutin heels. Andreas Rentz/GettyBest Dressed, Even With the Bow: Kerry WashingtonKerry Washington: another event, another spot-on dress. This time she wore a cream and white checked Louis Vuitton dress with a white headband and Christian Louboutin heels at the Rome photo call for Django Unchained. Kevin Winter/GettyBest Dressed, Highest Slit of the Week: Heidi KlumHeidi Klum must love strange, asymmetrical dresses with lots of holes. But this one was more of a success than attempts past: it was a Julien Macdonald design, which she paired with Lorraine Schwartz jewels and Christian Louboutin shoes and clutch. Stephen Lovekin/GettyBest Dressed Couple of the Week: John Krasinski and Emily BluntAt the 2013 National Board of Review Awards Gala on Jan. 8, Blunt looked sleek in a nude Emilio Pucci dress with slits at the shoulders and waist, Stuart Weitzman heels, and Lorraine Schwartz jewels, while her husband looked dapper in a Calvin Klein suit. Dave Kotinsky/GettyBest Dressed, Flowers Bloom in January: Rachel WeiszWeisz brought a touch of spring to a screening of her film The Deep Blue Sea at the Museum of Moving Image, Jan. 8, in New York. She wore a Bottega Veneta dress, Charlotte Olympia shoes, and carried a Smythson clutch. Frazer Harrison/GettyBest Dressed, Lowest ‘V’ of the Week: Taylor SwiftBy now Taylor Swift seems to have reduced her red-carpet appearances down to a formula: always long, always shades of white or cream—sometimes but not always with sparkles—and very little else. At the People’s Choice Awards on Wednesday in Los Angeles, Swift wore a plunging white Ralph Lauren Collection dress. Andrew H. Walker/GettyBest Dressed, Simple and Clean: Lena DunhamHands in pockets is never a good way to stand. But Dunham looked great in a black Valentino jumpsuit with a white detail. Frazer Harrison/GettyBest Dressed, as Usual: Helen MirrenHelen Mirren looks better every time we see her. At the Palm Springs International Film Festival last weekend, she looked stunning in a red Escada Fall 2012 evening gown, David Webb jewelry, and Tory Burch clutch. Johnny Nunez/GettyWorst Dressed, Spandex Spacewoman: Nicki MinajThis was from over the holidays, but we had to acknowledge it. Jason Merritt/GettyWorst Dressed, Late for Christmas: Kristin KreukAt the People’s Choice Awards in Los Angeles on Wednesday, Kristin Kreuk looked like an elaborate gift basket (with a blue Tiffany’s box inside?) under the Christmas tree. Robyn Beck/GettyWorst Dressed, for Vague ‘Saved by the Bell’ References: Rocsi DiazKelly Kapowski would most certainly approve.