Lupita Nyong'o: 2014 to 2018
The Oscar winner dazzled in baby blue Prada when she won the Best Supporting Actress award for 12 Years a Slave. Four years later, Lupita looked fierce in Versace gown inspired by Black Panther.
Margot Robbie: 2014 vs. 2018
The Aussie went from dark to light in four years. Four years ago, the Wolf of Wall Street star went gothic with a Saint Laurent by Hedi Slimane dress. This year she was light as ever, in her Chanel Haute Couture gown.
Meryl Streep: 1979 vs. 2018
At the very beginning of her career, the actress donned a smile black gown when she attended the award show with her husband Don Gummer. Amazingly enough, 39 years later they are still together and the actress is still strutting her stuff on the red carpet. At the 2018 Oscars, Meryl donned a scarlet Christian Dior gown.
Jennifer Garner: 2003 vs. 2018
She's all about the blue! In 2003, Jen was icy at the Oscars. This year she wowed in a royal blue Atelier Versace gown.
Matthew McConaughey: 2003 vs. 2018
The Texan donned a shiny suit 15 years ago. At the 90th Annual Academy Awards, the Oscar winner razzle dazzled in a funky tux.
Whoopi Goldberg: 1985 vs. 2018
The funny lady donned very different ensembles decades apart. In 2985, the Jumpin' Jack Flash star wore a white suit. This year, The View co-host opted for a Christian Siriano-designed floral gown.
Sally Hawkins: 2014 vs. 2018
The Shape of Water star went for a lace design four years ago. This year, Sally wore an Armani Privé gown and Chopard jewelry.
Helen Mirren: 1995 vs. 2018
The Dame looked oh-so British when she went to the Oscars in 1995. More than two decades later, her style moved to more sleek and sophisticated blue look.
Armie Hammer: 2011 vs. 2018
The first time Armie hit the red carpet he went for a classic look. But seven years later, he decided to switch it up with a velvet red suit.
Jane Fonda: 1969 vs. 2018
A whopping 49 years after making her way to the Oscars stage for the first time, the Frankie and Grace star stood tall in a pearl-dusted and beaded Balmain gown with an angled neckline from Olivier Rousteing's 44 Francois Premier collection with Chopard jewelry, Salvatore Ferragamo shoes and a Perrin Parris bag
Saoirse Ronan: 2008 vs. 2018
A decade may have passed but the Irish star still loves to pop with color on the red carpet. A decade ago, she was just 13 years old when she arrived in a green ankle-length Alberta Ferretti dress. She was nominated for Best Supporting Actress in Atonement, the 2007 period film. This year the Lady Bird star wowed in pink Calvin Klein.
Mira Sorvino: 1996 vs. 2018
The actress wore a light blue Armani dress when she won for Mighty Aphrodite in 1996. This year she took a stand in the Time's Up movement with her floral Romona Keveža frock.
Rita Moreno: 1962 vs. 2018
The actress wore the same dress this year that she dazzled in 1962—the year that she won the Oscar for West Side Story.
Zendaya: 2015 vs. 2018
The star opted for figure-hugging ivory-toned Vivienne Westwood three years ago. This year she wore her hair up in a bun and wowed in a chocolate Giambattista Valli design.
Salma Hayek: 1997 vs. 2018
The first time she went to the Oscars, the Mexican beauty donned green eye shadow, a tiara and an Armani dress. A whopping 21 years later, Salma caused a stir when she opted for a Gucci gown with diamond chains by Harry Winston.
Sandra Bullock: 1996 vs. 2018
Sandy donned a chocolate brown frock back in the day. In 2018, the stunner stole the show in a custom-made gold and black sequined, high-neck, silk Louis Vuitton halter gown.
Paz Vega: 2006 vs. 2018
In 2006, Paz opted for a striking black dress. In 2018, the Spanish star was blooming in a Christopher Bu gown with large red cherry blossoms on it.
Ashley Judd: 1998 vs. 2018
Making headlines when she accidentally showed off her lady bits while wearing the white Richard Tyler gown, Ashley made history 20 years ago. Two decades later, Ashley hit the red carpet in a very different fashion—to support the Time's Up movement. For the award show, Ashley wore a Badgley Mischka dress, gown and clutch, Bulgari diamonds and a custom Zameer Kassan ring in support of the movement.
Emma Stone: 2012 vs. 2016
Emma opted for a Giambattista Valli design six years ago (even though it was compared to Nicole Kidman's similar looking Oscar gown from 2007). This year, the redhead donned a rather unconventional look of silky Louis Vuitton suit.
Jennifer Lawrence: 2011 vs. 2018
J.Law was quite the bombshell in her red hot Calvin Klein dress, which she wore for her nomination for Winter's Bone seven years ago. This year, the Oscar winner went for the gold in her sequin Dior dress.
Emily Blunt: 2007 vs. 2018
The British actress donned a sequined Calvin Klein dress 11 years ago. This year she wowed in a baby blue Schiaparelli Haute Couture gown with Chopard jewelry.
NIcole Kidman: 1991 vs. 2018
The Australian showed up wearing a Valentino minidress (and with her ex husband Tom Cruise) in the early '90s. This year she donned a cobalt blue Armani Privé frock.