By Jessica Wedemeyer
11:52pm PST, Mar 4, 2018
Why wear just one couture confection when you can wear two?! That's the motto many stars adopt on Hollywood's biggest night! Wonderwall.com is taking a look back at the bold-faced names who changed up their looks on Oscar night, starting with Salma Hayek. The A-list actress donned a divisive Prada gown during the Academy Awards. Keep reading to see what she wore later in the evening, plus check out more stars who had Oscar-night wardrobe changes…
RELATED: The biggest celeb style hits and misses of the 2018 Oscars
Emma Stone sported a multi-colored Louis Vuitton minidress during the Vanity Fair afterparty.
Lupita Nyong'o stunned in a one-shoulder Atelier Versace gown during the Oscars.
Lupita Nyong'o risked a wardrobe malfunction in a black beaded Armani Prive gown with a plunging neckline during the Vanity Fair afterparty.
Margot Robbie donned another Chanel number — a feminine frock with a sheer skirt — during the Vanity Fair afterparty.
Gal Gadot sparkled in a Givenchy gown with a fringe skirt during the Oscars.
Gal Gadot looked red-hot in a sexy Armani Prive number with a plunging neckline and a thigh-high slit during the Vanity Fair afterparty.
Allison Janney impressed in a red-hot Reem Acra gown with statement sleeves during the Oscars.
Allison Janney donned a Brandon Maxwell creation featuring a white button-down on top and a red skirt on bottom to show off her Oscar at the Vanity Fair afterparty.
Laura Dern was a vision in white in Calvin Klein by Appointment during the Oscars.
Laura Dern rocked another all-white look — a La Perla bustier top and slacks with a blazer — during the Vanity Fair afterparty.
Danai Gurira donned a strapless Gabriela Heast column dress during the Oscars.
Danai Gurira slayed in a white halter-dress during the Vanity Fair afterparty.
Greta Gerwig rocked a marigold Rodarte gown during the Oscars.
Greta Gerwig had a princess moment in a strapless white Dior dress with black stripes during the Vanity Fair afterparty.
Mary J. Blige flaunted her figure in a custom curve-hugging white Versace gown during the Oscars.
Mary J. Blige glowed in a gold column dress with a sheer neckline during the Vanity Fair afterparty.
Emily Blunt made many worst-dressed lists in a Schiaparelli Haute Couture confection during the Oscars.
Emily Blunt donned a curve-hugging embroidered gown with a high neckline — which we preferred to her Oscar dress — during the Vanity Fair afterparty.
Allison Williams channeled Old Hollywood in an Armani Prive gown with a drop waist during the Oscars.
Allison Williams raised temperatures in a beautiful strapless column dress by Jean-Louis Sabaji during the Vanity Fair afterparty.
Tiffany Haddish paid homage to her heritage in an authentic Eritrean princess gown during the Oscars.
After a mid-show wardrobe change, Tiffany Haddish changed into a yellow one-shoulder Brandon Maxwell gown with a train and a thigh-high slit.
Mira Sorvino looked pretty in pink in a Romona Keveza confection during the Oscars.
Mira Sorvino donned another pink look during the Vanity Fair afterparty.
Leslie Bibb donned a black-and-nude J. Mendel dress during the Oscars.
Leslie Bibb rocked a super-sexy Pamella Roland ensemble — a bustier top and slacks with a matching blazer — during the Vanity Fair afterparty.
Zendaya looked glamorous in a one-sleeve Giambattista Valli Haute Couture confection during the Oscars.
Zendaya stunned in a Michael Kors mermaid gown during the Vanity Fair afterparty.
Molly Sims took the plunge in a silver Naeem Khan creation with a dangerously low-cut neckline during the Oscars.
Molly Sims wore a black Zuhair Murad gown with a star-emblazoned neckline during the Vanity Fair afterparty.
Zoey Deutch donned a gorgeous hand-beaded Elie Saab Haute Couture confection with a tiered skirt during the Oscars.
Zoey Deutch donned a sleeveless Dior dress during the Vanity Fair afterparty.
Lindsey Vonn chose a dramatic black Christian Siriano gown with a train for the Oscars.
Lindsey Vonn donned a white embellished dress with a sheer bodice during the Vanity Fair afterparty.
Abbie Cornish donned a cold-shoulder Elie Saab gown during the Oscars.
Abbie Cornish wore a long-sleeve dress with colorful floral-print skirt during the Vanity Fair afterparty.
Eiza Gonzalez looked anything but mellow in a yellow open-back Ralph Lauren tank-dress during the Oscars.
Eiza Gonzalez rocked a strapless white Schiaparelli gown with a matching robe during the Vanity Fair afterparty.
Haley Bennett disappointed in a bizarre Dior dress during the Oscars.
Haley Bennett donned another Dior look — a red ensemble with a jacket — during the Vanity Fair afterparty.
Andra Day had a major fashion moment in an off-the-shoulder Zac Posen gown during the Oscars.
Andra Day wore a shiny pink number featuring a keyhole cutout with a matching belt and neck scarf during the Vanity Fair afterparty.
Paz Vega donned a unique floral-print Christopher Bu gown a train and pockets during the Oscars.
Paz Vega donned a black halter-gown with a sheer skirt and a feathered bodice during the Vanity Fair afterparty.
Keala Settle stayed on trend in a nude Christian Siriano creation with sheer sleeves during the Oscars.
Keala Settle wore this navy-blue gown during her stirring performance of "This Is Me" from "The Greatest Showman" as part of the Oscar telecast. She also wore it to FOX's annual Academy Awards afterparty.
Tom Holland suited up in a custom Hermès creation during the Oscars.
Tom Holland looked sharp in a burgundy Dolce & Gabbana ensemble during the Vanity Fair afterparty.
Kristin Cavallari had a princess moment in a strapless Pamella Roland gown on the Oscar red carpet.
Kristin Cavallari donned a dramatic strapless gown with a 3D bodice during the Elton John AIDS Foundation's 26th Annual Academy Awards Party.
Miley Cyrus donned a long-sleeve Moschino by Jeremy Scott creation with silver sequins and a hot-pink satin panel during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Miley Cyrus donned a silky cream-and-black gown during the Vanity Fair party.
Heidi Klum showed some skin in a Georges Hobeika creation with a keyhole cutout and a thigh-high slit during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Heidi Klum rocked an asymmetrical chartreuse Ralph & Russo number with a fringe skirt during the Vanity Fair party.
Adriana Lima sparkled in a beaded Georges Hobeika dress during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Adriana Lima looked glamorous in a strapless black Alberta Ferretti gown with a thigh-high slit and an extra-long train during the Vanity Fair party.
Jasmine Tookes donned a strapless Monique Lhuillier gown with a feathered skirt during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party
Jasmine Tookes changed into a one-sleeve gold Jean-Louis Sabaji gown before the Vanity Fair party.
Karolina Kurkova rock a white Balmain suit during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Karolina Kurkova sported another Balmain look — an asymmetrical gold minidress with a partially sheer bodice — during the Vanity Fair party.
Petra Nemcova looked sunny in a one-shoulder Celia Kritharioti confection with a thigh-high slit during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Petra Nemcova flaunted one of her stems in a Redemption dress with a silver one-sleeve bodice and a red skirt with a thigh-hight slit during the Vanity Fair party.
Romee Strijd rocked a silver suit with a dangerously low-cut neckline during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Romee Strijd donned a black sequined dress with a plunging neckline during the Vanity Fair party.
Shanina Shaik donned a white August Getty Atelier gown with an open back during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Shanina Shaik donned a nearly-nude Georges Hobeika halter dress during the Vanity Fair party.
Kat Graham rocked a white suit during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Kat Graham wore a red Dior dress with a black belt during the Vanity Fair party.
Toni Garrn shimmered in a Siran wrap dress during the Elton John AIDS Foundation's 26th Annual Academy Awards Viewing Party.
Toni Garrn donned a sleeveless black Elie Saab gown with sheer panels in the skirt during the Vanity Fair party.
