Our PicksLady Gaga, Olivia Wilde, and More Best & Worst Dressed of the Week (PHOTOS)Lori-Lee Emshey09.06.13Our PicksLady Gaga, Olivia Wilde, and More Best & Worst Dressed of the Week (PHOTOS)Olivia Wilde stunned in a Gucci suit, Emma Watson bared some midriff -- and Lady Gaga wore bubbles. See fashion's highs and lows this week.Lori-Lee Emshey09.06.13 8:21 PM ETOlivia Wilde stunned in a Gucci suit, Emma Watson bared some midriff -- and Lady Gaga wore bubbles. See the fashion highs and lows of the week. Mike Marsland/WireImage via Getty,Mike MarslandBest Dressed, Black Tie: Olivia WildeWilde looked better in a suit than the Hemsworth brothers—who also walked the red carpet—at the London premiere of her film Rush on September 2, in a Gucci one-of-a-kind black silk tuxedo. David M. Benett/Getty,David M. BenettBest Dressed, Best Seller: Alexa ChungAlexa Chung looked on-trend in a Carven Resort 2014 ensemble as she celebrated the launch of her new book It in London on September 5. Chung transferred the outfit straight from the brand's lookbook, but added her own touch with a Dolce & Gabbana Agata handbag. Stefania D'Alessandro/WireImage via Getty,Stefania D'AlessandroBest Dressed, Menswear Chic: Gia CoppolaFirst-time director Gia Coppola wore a Saint Laurent tuxedo, complete with a feminine bowtie, at the Palo Alto premiere at the Venice Film Festival on September 1. Dave Kotinsky/Getty,Dave Kotinsky Best Dressed, Luncheon Ready: Harley Viera-NewtonModel/DJ Harley Viera Newton wore a Michael Kors black-and-nude lace dress with a strapless, bustier top from the designer's Pre-Fall 2013 collection. She avoided the formal cocktail look for the 2013 Couture Council Artistry of Fashion Luncheon by accessorizing with a matching cardigan, belt, and wing-tip shades. Stuart C. Wilson/Getty,Stuart C. WilsonBest Dressed, Silver Stunner: Kate MossIf there's one person that can pull-off an all-silver suit without looking like a spaceman, it's Kate Moss. The supermodel beamed at the unveiling of the upcoming auction Kate Moss: The Collection at Christie's in London on September 4. Venturelli/WireImage via Getty,VenturelliBest Dressed, Peter Pan Style: Carey MulliganWalking the red carpet for Miu Miu's Women's Tales premiere in Venice, actress Carey Mulligan looks both sophisticated and playful in her black Miu Miu dress with a Peter Pan collar and sunglasses. Alex Davies/FilmMagic via Getty,Alex DaviesBest Dressed, Comeback in Bubbles: Lady GagaAfter a slew of minimalistic and simple outfits, the eccentric fashion-loving Lady Gaga is finally back to her old tricks. Exiting the iTunes festival in London, she surprised fans with an architectural, all-white, Techhaus bubble dress. Yes, the shift blows its own bubbles. Enough said. Tim P. Whitby/Getty,Tim P. WhitbyWorst Dressed, Missed the Mark: Emma WatsonWhile the actress may have won Best Woman at GQ's Style Awards on September 3, Emma Watson's outfit is certainly not winning her best dressed. The white bandeau crop top with faux bolero sleeves and black pants are straight off the Balenciaga Resort 2014 runway. But that doesn't make it right—even if you happen to be Emma Watson. Jackson Lee/Splash via Corbis,Jackson LeeWorst Dressed, Underwear as Outerwear: Lindsay LohanThe underwear as outerwear trend hasn't be in for a long time and this outfit isn't helping to bring it back. Lindsay Lohan may be making a slow but steady comeback, but her fashion choices could still use a bit of rehab. Michael Loccisano/Getty,Michael LoccisanoWorst Dressed, Hit the Wrong Key: Alicia KeysWhy--just why? Not only should this color pant ever exist in grown-up sizes, but if it happened to, by accident, no one should ever wear it. Blinding pink color aside, Alicia Keys's pants don't fit properly and instead hide her awesome curves. Jeffrey Ufberg/WireImage via Getty,Jeffrey UfbergWorst Dressed, Picked Last for the Draft: Stacy KeiblerSailor on the top and purple satin sack on the bottom, Stacy Keibler's outfit is certainly not a touchdown at the NFL Back to Football event. Tim P. Whitby/Getty,Tim P. WhitbyWorst Dressed, Paging Morticia Addams: Jessie JThis black boob tube with matching skirt and train make Jessie J look like she left half of her outfit in the limo as she walked the red carpet at the GQ Style Awards on September 4.