Getty; Splash News; Getty for WGAw; WireImageOur PicksKate Middleton, Jessica Chastain & More Best & Worst Dressed From Kate Middleton to A$AP Rocky, see fashion's highs and lows of the week. 02.22.13 4:45 AM ETGetty; Splash News; Getty for WGAw; WireImageGetty; Splash News; Getty for WGAw; WireImage Between London Fashion Week and Oscar week in Hollywood, the last few days have been filled with red carpet events. From Kate Middleton to A$AP Rocky, see our favorites. Pool Photo by Mary TurnerBest Dressed Baby Bump of the Week: the Duchess of CambridgeKate Middleton practically set fire to the Internet on Tuesday when she appeared at Hope House in South London for the first time with her baby bump—wearing a gray and black MaxMara wrap dress. Gerard Julien/AFP/GettyBest Dressed, Simple and Springy: Emma StoneStone promoted her new film, The Croods, at the Berlin International Film Festival last week in a short, lemon-colored Stella McCartney dress. Jason Kempin/Getty for WGAwBest Dressed, Monochrome of the Week: Jessica ChastainBy now we've seen a lot of Jessica Chastain. She's been at practically every party that was held anywhere in the last three months. But her appearance at the Writers Guild Awards in L.A. this week managed to bring a breath of fresh air in a nude Christian Dior Resort 2013 dress and Harry Winston diamonds. Eamonn McCormack/GettyBest Dressed Couple of the Week: Jessica Biel and Justin Timberlake"Suit and Tie," indeed. The singer and his wife flew into London Fashion Week in time for Tom Ford's Fall/ Winter 2013 show on Monday, where they both, presumably, wore Tom Ford designs. Mike Marsland/WireImageBest Dressed, Finally Changing It Up: Taylor SwiftSwift usually opts for ivory Princess gowns, so it was a nice change to see her in something a little more creative. She wore a black Elie Saab column dress with two mesh panels—Giuseppe Zanotti shoes, and Neil Lane jewels. Dave M. Benett/Getty for BACARDIBest Dressed, Little-Known Brit: Aluna FrancisThis British singer attended the Universal Music Brits party on February 20th in a glittering, silver Theyskens' Theory dress. Fred Duval/GettyBest Dressed, Not Straying Too Far From Character: Michelle DockeryThe Downton Abbey star channeled Lady Mary in a Burberry trench coat and pants at the Fall/ Winter 2013 Burberry Prorsum show in London on February 18. Neilson Barnard/GettyWe're on the Fence: Lena DunhamDunham's black-and-white piece of fabric didn't do her any favors—but she didn't look terrible either. Splash NewsWorst Dressed, Baby KimyeKim Kardashian looked like a pregnant paratrooper from outer space who was styled by Kanye West. Jemal Countess/Getty Images for Y-3Worst Dressed, A$AP RockyRocky may have walked in a fashion show, but that didn't make him any more stylish. Instead, he pulled a Kanye and rocked a ski mask. Simon Burchell/WireImageWorst Dressed, Kristen McMenamyThe veteran model looked like a fright fest in a goth-inspired dress and jacket in London on Wednesday night. Europa Press, via GettyWorst Dressed, Not-So-Spring Break: Vanessa HudgensThe star of Spring Breakers attended a photocall for the film in Spain on February 21st in a suspicious, lacy two-piece. Mike Marsland/WireImageWorst Dressed of the Week, Mish Mosh: Paloma FaithFaith attended the Brit Awards looking vaguely like the Duchess of Alba.