Lifestyle Style Last Night's Look: Love It or Leave It? Check out the head-turning outfits Sofia Vergara, Rihanna and more stars were just spotted in! Then decide – fabulous or fashion fail? By People Staff Published on September 28, 2012 03:30 PM Share Tweet Pin Email Trending Videos 01 of 40 SOFIA VERGARA Gregory Pace / BEImages avoids a wardrobe malfunction and keeps her assets safely covered in a curve-hugging LBD from her Kmart holiday line while celebrating her clothing collection for the store in N.Y.C. 02 of 40 RIHANNA Kristina Bumphrey/Startraks Keeping the pajamas-as-clothes trend alive, looks ready for bed (and ready to party) in an Acne ensemble at the opening of Jay-Z’s 40/40 Club at Brooklyn’s new Barclays Center. 03 of 40 OLIVIA WILDE Henry Lamb/Photowire / BEImages Thanks, Olivia, for showing us that white is alright after Labor Day. The actress selects a somewhat revealing sheath, gold heels, a matching clutch and House of Lavande Vintage earrings for a screening of her new film, Butter, in N.Y.C. 04 of 40 ASHLEY GREENE Evan Agostini/Invision/AP Joining her costar at the Butter premiere, the Donna Karan is peach perfect in a dress by the designer, finished with neutral heels by Casadei, Phyne by Paige Novick gems and a simple clutch. 05 of 40 JENNIFER GARNER Dave Allocca/Startraks Sexy mom alert. The flaunts her “strong and sexy” figure in strapless red Gucci (set off with stick-straight hair and a Pomellato bracelet) at the Butter premiere after-party in New York. 06 of 40 NIKKI REED Charley Gallay/WireImage Summer might be over, but Nikki proves that the floral trend is not. She selects a pretty watercolor Dolce & Gabbana dress, cream Jerome C. Rousseau pumps and loose waves at a “Scenemakers” event hosted by Express and Vogue in L.A. 07 of 40 GABRIELLE UNION Vallery Jean/Getty At a screening of Half the Sky in Miami, the actress goes full-on fashion-forward in a chic ivory-and-coral beaded Naeem Khan sheath teamed with sexy nude sandals and Pomellato jewels. 08 of 40 KIERNAN SHIPKA Jon Kopaloff/FilmMagic Is it weird that we want to raid a tween’s closet? The Mad Men actress accessorizes her blue silk Opening Ceremony mini (love the Peter Pan collar!) with a funky yellow clutch and unexpected teal shoes at Vogue celebration. 09 of 40 JENNA DEWAN-TATUM Charley Gallay/WireImage Also at Vogue party, Mrs. Channing Tatum makes a statement with her sparkly collar, which easily steals the spotlight from her simple white dress and maroon-and-yellow pumps. 10 of 40 MILLA JOVOVICH Slaven Vlasic/Getty Croc print: not just for bags and shoes. Milla works an abstract reptile-esque Armani Privé creation at the DreamBall Gala in N.Y.C., finishing off the attention-grabbing dress with equally bold green danglers and a black clutch. 11 of 40 EMMA WATSON James Whatling/Splash News Online We’ve seen velvet, flares and Doc Martens. And now Dior Haute Couture dress-over-pants ensemble (worn to a London screening of The Perks of Being a Wallflower) proves that ’90s fashion is definitely back. 12 of 40 ROSARIO DAWSON Rune Hellestad/Corbis In a patchwork skirt, nude blouse, statement necklace and lace-up booties, the clearly isn’t afraid of experimenting with several different looks at a London photo call for Tara Smith’s vegan hair care line. 13 of 40 TAYLOR MOMSEN ChinaFotoPress/Getty She’s traded her favorite ripped-up tights and Lucite heels for a more grown-up look – a sheer sheath and pumps – but Taylor holds fast to her signature eye makeup at a Samantha Thavasa store opening in Hong Kong. 14 of 40 ARIEL WINTER Nick Rood/Young Hollywood/Getty Modern Family’s middle child won’t be lost in the shuffle thanks to this girlie yellow Asos playsuit, worn with nude pumps and pink lips for a visit to the Young Hollywood Studio in L.A. 15 of 40 KIM KARDASHIAN Axelle/Bauer-Griffin It takes a brave woman to wear a green velvet wrap dress. The fearless wears the unforgiving fabric, along with strappy gold sandals and glossy locks, to a Midori event in Santa Monica, Calif. 16 of 40 PENéLOPE CRUZ Carlos R. Alvarez/WireImage After giving florals a spin, the pulls out all the stops with a pleated vintage Gianni Versace gown, worn with matching platform sandals and a gold clutch to the premiere of her film Twice Born at the San Sebastian, Spain film festival. 17 of 40 MALIN AKERMAN Amanda Edwards/WireImage Mullet dresses haven’t earned high marks in Love It or Leave It in the past, but will this be the one to break the trend? The actress wears her $85 Growze number with a red belt and ankle booties to the Hotel Noir screening in L.A. 18 of 40 DEBRA MESSING Graylock/Abaca The Smash star looks to score another hit with her basic black dress, sparkly danglers and simple accessories, all worn to the Every Woman Every Child dinner in N.Y.C. 19 of 40 CARLA GUGINO Amanda Edwards/WireImage Also at the L.A. screening of Hotel Noir, the actress flashes a hint of skin in black lace and adds two-tone platform pumps. 20 of 40 AISHWARYA RAI Andrew H. Walker/Getty Red and black appear to be the hottest colors of the evening. In this case, the Indian star attends the Every Woman Every Child dinner in N.Y.C. wearing a vivid crimson sari with gold embroidery, plus long loose waves. 21 of 40 KATY PERRY Jun Sato/WireImage Considering she tends to go for wacky, the watercolor Randi Rahm mini and purple Jimmy Choo heels, worn with a basic bob to the Tokyo premiere of her film Part of Me, seem downright understated. 22 of 40 ELIZABETH BANKS Lester Cohen/WireImage The Pitch Perfect star turns up the heat at the film’s Hollywood premiere, donning a keyhole-cutout strapless number with a high-shine golden clutch, black Jimmy Choo sandals and Marina B jewelry. 23 of 40 JESSICA CHASTAIN Jemal Countess/Getty In a scattered-sequin Oscar de la Renta dress (so close to her skin tone, it made us do a double take!), nude Jimmy Choo heels and red lips, the actress attends the American Theatre Wing’s N.Y.C. gala. 24 of 40 PENéLOPE CRUZ Carlos R. Alvarez/WireImage The knows that the arrival of fall is no reason to retire florals. She chooses a L’Wren Scott sheath with a subdued-hue print and accents the colors with simple accessories including Ferragamo heels at the San Sebastian, Spain photocall for her film Twice Born. 25 of 40 SALMA HAYEK Ernesto Ruscio/WireImage The subtle embroidery on this charcoal sheath, worn with Sergio Rossi heels by the to a Savages photocall in Rome, takes the dress from corporate to cool. 26 of 40 CATE BLANCHETT Don Arnold/WireImage may have left her wild looks in the closet last night, but Cate sure didn’t. She wears a shiny puff-sleeved turtleneck dress with black accessories to the Helpmann Awards in Sydney. 27 of 40 HALLE BERRY Charley Gallay/WireImage Cozying up to her fiancé at the West Hollywood premiere of his film Cybergeddon, the plays supportive wife in a casual striped Vivienne Westwood dress and dangling earrings. 28 of 40 ANNA KENDRICK Lester Cohen/WireImage Also hitting the Hollywood Pitch Perfect premiere in a major look, the actress pairs her nude Zuhair Murad turtleneck dress with Brian Atwood sandals, Dana Rebecca Designs jewels and a gold clutch. 29 of 40 WINONA RYDER John Shearer/Invision/AP Simple and classic was the order of the day for the actress, who dons an empire-waist two-tone sheath with black platform Sergio Rossi heels and dangling earrings to the Frankenweenie premiere in Hollywood. 30 of 40 BRITTANY SNOW Michael Tran/FilmMagic Blue is the color of the Pitch Perfect actress’s Georges Hobeika dress, selected for the Hollywood premiere of the movie, and blue is also the mood it puts us in. (We do love those silver pumps, though!) 31 of 40 NATALIE PORTMAN Alex J. Berliner/ABImages Channeling a Disney princess in a strapless, sparkling Dior Haute Couture white gown, plus – oh yeah, those new blonde locks – the attends the L.A. Dance Project at the Music Center’s Walt Disney Hall. 32 of 40 TAYLOR SWIFT FameFlynet Wonder how this compares to antiquing with Conor! The wears a lacy red French Connection dress and Swarovski earrings to the iHeart Radio Music Festival in Las Vegas. 33 of 40 SELENA GOMEZ Gregg DeGuire/WireImage Her sexy style transformation continues with this metallic-accented fitted white dress, worn with spiked heels and a Melinda Maria ring to the Hotel Transylvania premiere in L.A. 34 of 40 MILEY CYRUS Chelsea Lauren/WireImage You’re not sold on her short blonde crop, but there’s no denying she’s got some amazing abs! shows them off on the iHeart Radio red carpet in Las Vegas, wearing a turtleneck crop-top, silver pencil skirt and leopard heels. 35 of 40 DIANNA AGRON FameFlynet It’s a long way from her Glee cheerleader uniforms, that’s for sure! The actress goes goth-chic in a black ballgown with a sparkling skirt and sheer bodice panel at the launch of “Le Cite du Cinema” in Saint-Denis, France. 36 of 40 NINA DOBREV FameFlynet Super-short and sparkly was on the menu for the Vampire Diaries actress, who hits the iHeart Radio Music Festival in Las Vegas wearing an embroidered Zuhair Murad mini with Jimmy Choo platform sandals. 37 of 40 GINNIFER GOODWIN Veronica Summers/Splash News Online Warming up for her orange moment at the Emmys, the star sparkled in a black-and-blue studded Jenny Packham shift, Jimmy Choo sandals and Dana Rebecca Designs earrings, plus a House of Lavande Vintage ring, at an Entertainment Weekly Emmys pre-party in L.A. 38 of 40 DEMI LOVATO Splash News Online She bangs with a new hairstyle at the iHeart Radio event in Las Vegas, teaming her new fringe with an embellished black mini, three $50 Karen London rings, and massive platform pumps. 39 of 40 ALLISON WILLIAMS Jason Merritt/WireImage Quickly shaping up to be a red carpet up-and-comer to watch, the Girls star wears a lace-topped, bow-belted pink Oscar de la Renta ensemble with satin Casadei pumps to the Variety Emmys party in L.A. 40 of 40 MIRANDA LAMBERT FameFlynet Also at the iHeart Radio festival in Las Vegas, the is all decked out in a belted gray number with fringed ankle boots.