Our PicksBest & Worst Dressed of the WeekErin Cunningham09.20.13Our PicksBest & Worst Dressed of the WeekKerry Washington was pretty in pink in Halston Heritage, Blake Lively shines in gold, and Cate Blanchett looks like a chic Dracula. See fashion's highs and lows this week.Erin Cunningham09.20.13 5:00 PM ETGetty; Anthony Behar/Sipa USAKerry Washington is pretty in pink, Blake Lively shines in gold Gucci, and Gwyneth Paltrow opts for white after Labor Day. See fashion's highs and lows this week. Anthony Behar/Sipa USABest Dressed, Peachy Keen: Gisele BundchenGisele Bundchen took advantage of the beautiful September weather in a J. Mendel orange cut-out dress at the Eco Trailblazers in New York on September 18. Kevin Winter/GettyBest Dressed, Pretty in Pink: Kerry WashingtonActress Kerry Washington, who was recently named People magazine's best dressed woman of the year, proved the title to be true in the bright pink, ruffled Halston Heritage dress she wore to The Academy of Television Arts & Sciences and SAG-AFTRA celebration of the 65th Primetime Emmy Award nominees on September 17. Jacopo Raule/GettyBest Dressed, Golden Girl: Blake LivelyBlake Lively made her fashion month debut on Wednesday, sitting front row next to Anna Wintour at Gucci's Spring/Summer 2014 presentation. Lively, who fronted the campaign for Gucci's Premiere fragrance last year, looked sophisticated in a mustard-colored leather dress from the brand's Resort 2014 collection with coordinating copper sandals and a nude clutch. Jason Merritt/GettyBest Dressed, Snow White: Gwyneth PaltrowWhoever said you can't wear white after Labor Day clearly got it wrong. For the premiere of Thanks For Sharing on September 16, Gwyneth Paltrow kept it sophisticated in a white, flared dress by Lanvin. Although she kept her hair simple and straight, she accessorized more playfully with Nicholas Kirkwood pumps and bright red lipstick. Karwai Tang/WireImageBest Dressed, Fall Fur: Sienna MillerActress Sienna Miller -- and the face of Burberry's Fall 2013 campaign -- attended the brand's Spring/Summer 2014 show on September 16 in a dark green fur jacket with a coordinating ribbed pencil skirt both by the designer. Jacopo Raule/GettyBest Dressed, Winter Ready: Anna Dello RussoAnna Dello Russo attended the Alberta Ferretti Spring/Summer 2014 show on September 18 wearing a gray wool dress -- with front tied sleeves across her middle -- from Céline's Fall 2013 collection. In typical Dello Russo fashion, she accessorized with wild DSquared2 glasses and black feathered sandals. Bryan Bedder/Getty for Estee LauderBest Dressed, Pulling Out The Plum: ImanIman wore a simple, purple chiffon number by Zac Posen to Estée Lauder's "Modern Muse" fragrance launch party on September 12. Chris Jackson/GettyBest Dressed, Silk Set: Stella McCartneyEco-friendly designer Stella McCartney attended The Global Fund's first green carpet challenge on September 16 wearing matching, printed silk top and shorts from her own Resort 2014 collection. Stuart C. Wilson/GettyBest Dressed, Garden Party: Poppy DelevingneSitting front row at the Erdem Spring/Summer 2014 show on September 16, Poppy Delevingne wore a playful and flirty floral appliqué frock from the designer's Resort 2014 collection. Although she wore simple black pumps, she spiced things up with a pair of wildly-embellished DSquared2 sunglasses. Jacopo Raule/GettyBest Dressed, Mixing Patterns: Giovanna BattagliaGiovanna Battaglia always holds the street-style reins. She attended Fendi's Spring/Summer 2014 wearing a light blue button-down with a slight geometric pattern, a polka-dot skirt, and one of Fendi's furry little friends. Danny E. Martindale/GettyBest Dressed, Fiery Prints: Naomie HarrisActress Naomie Harris brought some light to a cold London evening as she attended the Harper’s Bazaar London Fashion Week wrap-up party on September 17. Harris wore an orange, white, and blue printed dress from Peter Pilotto's Resort 2014 collection paired with a plexi-glass clutch by Charlotte Olympia and simple gray Christian Louboutin heels. Chris Jackson/GettyBest Dressed, Seeing Double: David and Victoria Beckham"It" Brits David and Victoria Beckham attended The Global Fund's first green carpet challenge on September 16 both wearing all-black suit looks. Victoria rocked a boyfriend blazer and trousers from her Fall 2013 collection with a pair of Manolo Blahniks, while David opted for a tailored suit by Burberry. Fred Duval/GettyYou Decide, Dracula Chic: Cate BlanchettIt's hard to tell if Cate Blanchett's Givenchy couture gown is dramatically chic or ready (way too early) for Halloween. The actress attended the UK premiere of her film Blue Jasmine on September 17 in a black dress, clad with an off-the-shoulder cape and gold embroidery. Chris Jackson/GettyWorst Dressed, 80s Prom: Elizabeth McGovernDownton Abbey star Elizabeth McGovern looked like she was dressed for an Eighties prom (rather than The Global Fund's green carpet event) in a poufy, bright blue, strapless dress and bright green strappy heels. Sylvia Linares/FilmMagicWorst Dressed, Not the Cat's Meow: Beth DittoBeth Ditto parties at ANother Magazine's party in London on September 16 in a wacky tiger-printed dress and an awkward leopard headpiece.