Amy Adams may not have gone home with the gold in 2013 (she was nominated for Best Supporting Actress for her role in The Master), but she still looked stunning in this Oscar de la Renta dress that she helped design.
Angelina Jolie's leg became a star of the red carpet in its own right at the 2012 Academy Awards.
Halle Berry made history in this unforgettable Ellie Saab concoction when she gave a passionate, tearful speech after becoming the first African-American woman to win Best Actress in 2002 for Monster's Ball.
It would have been easy for Hathaway to blend right in with the carpet in this stunning Marchesa one-shoulder gown at the 2008 Oscars, but she instead stood out as one of the best-dressed stars at that year's ceremony.
Audrey Hepburn won Best Actress at the 1954 Oscars for her role in Roman Holiday, and also scored a fashion victory with this floral Givenchy dress.
Barbra Streisand raised eyebrows with the see-through Arnold Scaasi pantsuit she wore to the 1969, where she was nominated for Best Actress for Funny Girl. (She later claimed she didn't realize the outfit would be see-through under the lights.
Brie Larson, the Best Actress winner at the 2016 Oscars, wowed viewers not just with her performance in Room, but also with the Gucci dress she wore to celebrate her first nomination.
There's just something about this Emmanuel Ungaro dress Cameron Diaz wore to the 2002 Oscars, which is generally acknowledged as one of the worst Academy Awards red carpet looks of all time.
Cate Blanchett may have lost to Brie Larson in the Best Actress category at the 2016 Oscars, but her Armani Prive dress left a lasting impression.
At the 2004 Academy Awards, Charlize Theron's red carpet look was a far cry from the prosthetics and makeup she wore to portray Aileen Wuornos in Monster, for which she took home a Best Actress Oscar.
Do you believe Cher wore this getup to the 1986 Oscars?
Emily Blunt was pretty in pink (and pregnant!) at the 2016 Academy Awards.
Emma Stone was a first-time presenter at the 2012 Oscars, where she wore a polarizing Giambattista Valli couture gown with a puffy bow. What will she wear this year, as a Best Actress nominee?
One could argue that all three of Grace Kelly's Oscar dresses (worn in 1954, '55 and '56) were iconic, but the Helen Rose dress she wore to the 28th Academy Awards in 1956 will be remembered because the ceremony marked her final public appearance in Hollywood. Less than a month later, she married Prince Rainier III of Monaco and retired from acting.
Paltrow modeled her look at the 1999 Oscars, where she won Best Actress for Shakespeare in Love, after Grace Kelly, appearing in a pink Ralph Lauren gown that received universal acclaim.
Halle Berry made quite an impression in her first appearance at the Academy Awards, wearing a bright purple dress to the 1996 ceremony.
At the 2005 Oscars, Hilary Swank won Best Actress for Million Dollar Baby, and also looked like a million bucks in this long-sleeve navy blue Guy Laroche dress.
Isla Fisher's green Monique Lhuillier gown at the 2007 Oscars was a bold choice both in terms of cut and color.
Who could forget the gorgeous Christian Dior Couture dress Jennifer Lawrence wore to the Oscars in 2013? Certainly not Lawrence, who tripped over the gigantic skirt as she was walking up to the stage to accept her Best Actress award for Silver Linings Playbook.
It wasn't as scandalous as the dress she wore to the 2000 Grammys, but Jennifer Lopez's see-through Chanel Haute Couture gown at the 2001 Oscars raised just as many eyebrows.
Jessica Chastain didn't bring home a statue at the 2012 Oscars, where she was nominated for Best Supporting Actress for The Help, but that's OK -- she had no shortage of gold on the red carpet.
Julia Roberts celebrated her Best Actress win in 2001 in this black and white Valentino stunner.
There's a lot to praise about Kate Hudson's silver Atelier Versace gown at the 2014 Oscars, but she gets extra points for the bolero.
Less impressive, but equally memorable, was this Stella McCartney number Hudson wore to the 2001 Oscars. Unfortunately, the dress wasn't Hudson's only loss of the night -- she was also bested in the supporting actress category by Pollock's Marcia Gay Harden.
Best Actress nominee Kate Winslet wore an embroidered long-sleeve Givenchy gown to the 1998 Oscars that was considered regal at the time, but has not aged particularly well.
The violet-grey and black lace Yves Saint Laurent dress Winslet donned for the Oscars in 2009, however, has stood the test of time -- and was a lucky charm for Winslet, who won her (thus far) only Academy Award that year for The Reader.
Lupita Nyong'o's blue Prada dress at the 2014 Oscars was almost as impressive as her performance in 12 Years a Slave, which earned her a Best Supporting Actress award that year.
Michelle Williams was a Best Supporting Actress nominee for Brokeback Mountain at the 2006 Oscars, and her saffron Vera Wang dress is considered one of the best red carpet looks of all time.
Mila Kunis' lavender Elie Saab Haute Couture dress turned plenty of heads at the 2011 Oscars.
Nicole Kidman's haute couture Dior gown at the 1997 Academy Awards is a contender for best Oscars dress of All time.
Ruth Negga set the red carpet ablaze in a blood-hued Valentino at the 89th Annual Academy Awards in 2017.
Octavia Spencer's dress at the 2013 Academy Awards was one of several gowns she's worn by the designer Tadashi Shoji.
At the 2007 Oscars, Best Actress nominee Penelope Cruz made quite an impression with this strapless Atelier Versace gown.
Queen Latifah sang during the In Memoriam montage at the 2009 Oscars in a crystal-adorned navy gown by Georges Chakra.
Reese Witherspoon was an all-around winner at the 2006 Oscars, nabbing a Best Actress award for Walk the Line, and drawing rave reviews on the red carpet for this 1955 Christian Dior gown, which she found at a vintage boutique in Paris.
Renee Zellweger accepted her Best Supporting Actress Oscar at the 2004 ceremony in a white taffeta dress by Carolina Herrera.
The endlessly photogenic Sophia Loren gave the world one the most iconic images in Hollywood history when she turned up at the 30th Academy Awards in 1958 wearing a skin-hugging statin floral dress that flaunted her curves.
Rooney Mara scored her first Oscar nomination in 2012, in the Best Actress category for The Girl with the Dragon Tattoo, and also scored on the red carpet with this plunging Givenchy gown.
Wearing one of the final gowns Riccardo Tisci designed for Givenchy before he stepped down as creative director, Emma Stone very much resembled an Oscar statue (which she'd win for Best Actress in LaLa Land) in 2017 when she wore a gold flapper-inspired frock with lots of movement.
Sandra Bullock, 2010's Best Actress Oscar winner for The Blind Side, sparkled in a form-fitting Marchesa gown.
Saoirse Ronan paid tribute to her native Ireland in a green Calvin Klein dress at the 2016 Oscars, where she was a Best Actress nominee for Brooklyn.
Sharon Stone broke the rules and went (semi-)casual for the 1998 Oscars, where she wore a white Gap shirt paired with a lilac Vera Wang skirt.
The Help star Viola Davis was a shoo-in for the Best Actress award at the 2012 Oscars, but she lost out to The Iron Lady's Meryl Streep in an upset victory. Fortunately her fashion choices -- wearing natural hair and a bright green Vera Wang dress -- earned plenty of applause.
Zoe Saldana's unconventional off-white Alexis Mabille dress, with a multicolored hem, was a real eye-catcher at the 2013 Oscars.