Our PicksFrom Taylor Swift to Avril Lavigne, Best & Worst Dressed of the Week (PHOTOS)The Fashion Beast Team10.18.13Our PicksFrom Taylor Swift to Avril Lavigne, Best & Worst Dressed of the Week (PHOTOS)Carey Mulligan goes bright in Dior, Karlie Kloss opts for orange, and Jenny McCarthy butchers Gucci. See fashion’s highlights—and lowest points—from this week. The Fashion Beast Team10.18.13 5:20 PM ETGettyBest & Worst DressedCarey Mulligan goes bright in Dior, Karlie Kloss opts for orange, and Jenny McCarthy butchers Gucci. See fashion’s highlights—and lowest points—from this week. Royce DeGrie/TAS, via GettyBest Dressed, Short and Sweet: Taylor SwiftIt may be more Mod than her usual fare, but Taylor Swift looked stunning in a short silver Houghton dress at the Country Music Hall of Fame this week, where she was named Songwriter/Artist of the Year by the Nashville Songwriters Association. Evan Agostini/invision, via APBest Dressed, Always With That Midriff: Rooney MaraThe Queen of Black and White, Rooney Mara, opted for a dash of sparkle at the Her premiere this week—in a dress from the Proenza Schouler Spring Summer 2014 collection. Of course, Rooney being Rooney, there was a peek of midriff. Dimitrios Kambouris/GettyBest Dressed, Win of the Week: Allison WilliamsThe Girls star didn’t miss a beat in a long black Dior dress at the Elton John AIDS Foundation 12th Annual Benefit in New York on Oct. 15. Timothy Hiatt/GettyBest Dressed, A New Kind of Body-Con: Jennifer HudsonShe’s basically never looked better: Jennifer Hudson wore a gray Donna Karan Pre-Fall 2013 ruched dress with black Saint Laurent sandals to the premiere of her latest film, The Inevitable Defeat of Mister and Pete, in Chicago. Amanda Edwards/WireImage, via GettyBest Dressed, Just Enough Pop: Lupita Nyong’oNewcomer Lupita Nyong’o took a turn on the red carpet at the premiere of 12 Years A Slave at the Directors Guild of America in California. She looked chic in a dress straight off Miu Miu’s Spring 2014 runway—a show where, incidentally, she sat front-row. Stuart C. Wilson/GettyBest Dressed, A Vision in Yellow: Carey MulliganHelloo-oo Carey! Mulligan shined bright in a yellow strapless Dior dress, which she paired with black mesh heels, at the premiere of Inside Llewyn Davis at the BFI London Film Festival this week. Dimitrios Kambouris/GettyBest Dressed, Simple and Bright: Karlie KlossKloss opted for a strong orange Michael Kors dress at the designer’s gala for the God’s Love We Deliver Awards in New York on Wednesday night. Fame PicturesBest Dressed, Cold Shoulders: Dianna AgronIt’s a far cry from Glee: Dianna Agron looked stunning in a boat-neck black dress with white accents at the shoulders. She work the piece from Valentino’s Fall 2013 collection, along with Louis Vuitton heels, at the Paris premiere of her new film, The Family, this week. Walter McBride/GettyWorst Dressed, Too Many Themes: Jenny McCarthyThis belted sweater and skirt combination looked great in Gucci’s Pre-Fall 2013 collection, but it didn’t translate to the red carpet on opening night of A Night With Janis Joplin, where Jenny McCarthy butchered it with a pair of clunky black gloves. Jamie McCarthy/WireImage, via GettyWorst Dressed, Vomit Green: CiaraHere is a hooded, beaded, tasseled, and folded Pucci cocktail dress as seen on Ciara. And it’s also vomit-green. Fame PicturesWorst Dressed, Fire Crotch: Rita OraRita Ora, striding out of an L.A. restaurant this week, showed us what houndstooth looks like painted in a flame-y Renaissance motif and paired with red snakeskin booties. Taylor Hill/GettyWorst Dressed, Terrible in Tartan: Avril LavigneThis week, tartan and leather became, at the hands of Avril Lavigne, Bagpiper gone Britney.