- Oscars fashion has changed dramatically through the decades.
- What started as a simple affair now features haute couture and glitter to spare.
- Some of Hollywood’s biggest stars have been walking the Oscars red carpet for years.
- So Insider decided to see how their fashion has evolved since they made their debut.
- Visit Insider’s homepage for more stories.
Some of Hollywood’s most beloved stars have been gracing the Oscars red carpet for decades.
And as the years have passed and fashion has changed, it’s no surprise that many of their styles haven’t stayed the same.
So Insider went through the archives of celebrities at their Academy Awards debut to see how their looks have evolved since they first walked the red carpet.
There’s been hair transformations, partner swaps, and plenty of glitter. But our favorite stars still look as glamorous as ever.
Brad Pitt made his Oscars debut with then-girlfriend Juliette Lewis in 1992.
Pitt sported a mustache and beard and left his tie at home for the show as he walked the red carpet with Lewis, who he met on the set of the TV movie, "Too Young to Die?" in 1990.
But Pitt made sure to shave and bring his bow tie for the Oscars on Sunday.
Pitt took home his first Academy Award on Sunday night, winning best supporting actor for his role as a washed-up stuntman in "Once Upon a Time in Hollywood."
Scarlett Johansson sported an emerald-green gown for her first Oscars in 2004.
Johansson also sported a bold red lip for the red carpet, as well as bright-blonde locks.
Johansson has become more daring on the red carpet through the years, showing off a nude corset with her dress on Sunday night.
Johansson's slinky silver Oscar de la Renta gown featured a netted corset bodice that was covered with sparkling silver threads, some of which hung down her back and grazed the floor.
Saoirse Ronan also wore an emerald dress when she made her Oscars debut in 2008 at the age of 13.
Ronan received her first Academy Award nomination that year for best supporting actress in the film "Atonement."
Ronan has become a major player on the red carpet as she's gotten older, often experimenting with different styles.
Ronan's Gucci gown featured a light-purple skirt and a black-and-white top with a peplum waist.
Leonardo DiCaprio was just 20 years old when he went to his first Oscars in 1994.
DiCaprio, who received his first nomination that year for his role in "What's Eating Gilbert Grape," wore a classic tuxedo and a red ribbon to raise awareness for AIDS.
And DiCaprio looked as classic as ever on Sunday night.
While men's fashion on the red carpet has evolved dramatically in the last few years, DiCaprio stayed true to his roots and kept things simple on Sunday.
Margot Robbie paired her black dress with brunette locks as she took on the red carpet for the first time in 2014.
Robbie, who had just gotten her big Hollywood break with her role in "The Wolf of Wall Street," had to dye her hair brown for a role in the film "Z for Zachariah."
The Australian actress told Elle at the time that she had been brunette throughout high school and was "devastated" when she had to go blonde.
But Robbie has been black to blonde for years, including at the Oscars on Sunday.
But Robbie's red-carpet style has stayed similar, as she once again opted for a black gown - a vintage Chanel dress - with a pop of detail.
Charlize Theron wasn't afraid to show off her back at her first Oscars in 2000.
The South African actress opted for a slinky orange Vera Wang gown for her debut.
Theron has since become a huge fan of structural gowns, as seen with her ensemble on Sunday night.
Theron has a longtime partnership with Dior, and now always sports the brand on the red carpet.
Sandra Oh matched the red carpet for her Oscars debut in 2005.
Oh stunned in the bright-red dress, which she paired with a sparkling silver clutch and a statement necklace.
Oh has since become a red-carpet favorite thanks to her high-fashion looks, and that was true as ever on Sunday night.
The "Killing Eve" star brought haute couture to the Academy Awards with her Elie Saab ensemble, which featured huge sleeves (a major 2020 red-carpet trend) and ruffles that looked like roses at the bottom of her shimmering dress.
Laura Dern sported a major '90s trend with a simple spaghetti-strap dress for her first Oscars red carpet in 1996.
Dern attended the Academy Awards with her "Jurassic Park" costar Jeff Goldblum, who she dated from 1992 until 1997.
Dern has since become known for wearing bold prints on the red carpet, but on Sunday she changed things up with a tassel detail.
Dern wore a blush-pink dress on her big night, taking home her first Oscar after winning best supporting actress for her role in "Marriage Story."
Regina King shined in a metallic brown dress for her Oscars debut in 2005.
King's one-shoulder dress featured a dramatic ruffle on the strap, which she paired with an updo and chandelier earrings.
And King looked like a princess at the Academy Awards on Sunday.
The Oscar winner loves classic gowns, and on Sunday she opted for a sparkling light-pink dress designed by Versace.
Sigourney Weaver stayed true to '80s style when she got invited to her first Oscars in 1981.
Weaver sported big hair and a chic white jumpsuit for her debut.
Weaver has since traded her big curls for a chic bob, which looked sleek on Sunday night.
Weaver also sported a gorgeous emerald dress with a matching belt and clutch.
Tom Hanks and his wife Rita Wilson both sported curly hair at his first Oscars red carpet in 1987.
Hanks would win back-to-back Oscars for best actor the following decade, taking home the statue in 1994 for "Philadelphia" and in 1995 for "Forrest Gump."
The curls were gone on Sunday night, but the couple looked as chic as ever.
Hanks dazzled in a classic suit while Wilson shimmered from head to toe in a sparkling long-sleeved gown.
Kristen Wiig stuck to a classic nude strapless gown for her first Oscars red carpet in 2012.
Then "SNL" star paired her tulle dress with wavy brunette locks.
With 12 years of red-carpet duty under her belt, Wiig opted for something far more avant-garde on Sunday.
Wiig's dramatic Valentino dress, which she paired with long black gloves, was compared by many to lasagna.
Florence Pugh made a splash with her Oscars red-carpet debut in 2018 when she was just 22 years old.
Pugh, who was making waves at the time for her breakthrough role in "Lady Macbeth," sported an intricately beaded column dress for the show.
And Pugh wasn't afraid to stand out with this ruffled turquoise gown on Sunday.
The "Little Women" star wore a dazzling Louis Vuitton dress that took more than 250 hours and six different seamstresses to create.
The Oscars used to be a much more simple affair, as seen by Jane Fonda's classic black dress when she made her debut in 1969.
Fonda, who was 32 at the time, presented an award at the show.
She would be nominated the following year for the dramatic film "They Shoot Horses, Don't They?", which marked a significant turning point in her acting career.
But Fonda amped things up on Sunday night, shimmering in a sparkling red gown.
Fonda first wore her Elie Saab gown to the Cannes Film Festival in 2014.
The film legend, who was arrested five times last year while peacefully protesting for action on climate change, has sworn that she will never buy a new piece of clothing again.
Billy Porter easily won the Oscars red carpet last year with his custom Christian Siriano tuxedo ballgown.
Porter told Vogue at the time that he wore the gown because he wanted to "challenge the rigid Hollywood dress code."
"My goal is to be a walking piece of political art every time I show up," he added. "To challenge expectations. What is masculinity? What does that mean? Women show up every day in pants, but the minute a man wears a dress, the seas part."
This year Porter shined in a custom Giles Deacon couture ensemble that featured a bodice made of 24-karat gold.
The "Pose" star also wore a ball gown-style skirt, covered in a graphic print of eagles and gold chains that looked straight out of a painting.
Porter topped off his ensemble with metallic lace-up platform Jimmy Choo boots, which he wore over beige fishnet tights.
For a brief moment, he wore a gray fleece blanket over the outfit to stay warm in the rain.
Jewel hues were once big on the red carpet, as seen in this bright-blue gown that Penélope Cruz wore for her Oscars debut in 2000.
Cruz, who got her first lead role in an American film that year in "Woman on Top," paired her ensemble with a shawl - a popular red-carpet trend from the '90s.
But the Oscar winner opted for a vintage black Chanel gown on Sunday night instead.
The "Pain and Glory" star wore a satin couture gown from Chanel's 1995 collection.
Cruz was one of many stars to rewear dresses or sport vintage threads on Sunday night as celebrities work to make the red carpet more sustainable during the long awards season.
Keanu Reeves wore a long suit jacket and black from head to toe at his Oscars debut in March 2000.
Reeves was becoming a major Hollywood star that year thanks to his role in "The Matrix."
Reeves has since become a darling of Twitter. He even brought his mom to Sunday's show.
Patricia Taylor, a costume designer, was her son's date for the night. But a number of photo and news agencies mistook her for his 47-year-old girlfriend Alexandra Grant.
Natalie Portman looked like a Greek goddess at her Oscars debut in 2005.
Long before the naked dress became a major trend, Portman wore a semi-sheer gown on the red carpet with a plunging neckline.
But this year Portman made headlines for wearing a cape with the name of female directors who were snubbed at the Oscars.
Portman wore a custom Dior gown and cape, the latter of which featured eight last names embroidered down one side.
The names included on Portman's cape were: Lorene Scafaria ("Hustlers"), Lulu Wang ("The Farewell"), Greta Gerwig ("Little Women"), Mati Diop ("Atlantics"), Marielle Heller ("A Beautiful Day in the Neighborhood"), Melina Matsoukas ("Queen and Slim"), Alma Har'el ("Honeyboy"), and Céline Sciamma ("Portrait of a Lady On Fire").
Renée Zellweger stunned in a silk lavender gown for her first Oscars in 1999.
The following year Zellweger would make a huge splash with a canary-yellow gown on the Oscars red carpet.
Zellweger shimmered in a one-shoulder Giorgio Armani gown as she picked up her second Oscar on Sunday night.
Petra Flannery, Zellweger's stylist, told British Vogue that the "Judy" star has always favored well-fitted dresses.
"Renée has always had a distinct, classic, harmonious style," she added. "All her looks fit very precisely, so the silhouettes never overwhelm her."
Joaquin Phoenix walked the red carpet with his mother Heart for his first Oscars in 2001.
Phoenix, who was 27 at the time, kept things casual for his Oscars debut. He received his first Academy Award nomination that year for his role in "Gladiator."
This time around, Phoenix wanted to make sure the spotlight was on his fiancée Rooney Mara.
Throughout this awards season, Phoenix has been snapped admiring Mara and letting her steal the show. Phoenix won his first Oscar on Sunday night for his role in "Joker."
Brie Larson made a splash for her first Oscars red carpet in 2016.
The actress, who was 26 at the time, won her first Oscar that year for her starring role in "Room."
And Larson has remained a red-carpet standout, as seen with this gorgeous shimming gown she wore on Sunday.
Larson made numerous best dressed lists on Sunday with her sparkling Celine dress, which came with a matching floor-length cape.
Timothée Chalamet proved he was a star to watch on the red carpet when he made his Oscars debut in an all-white tuxedo.
Chalamet received his first best actor nomination that year for his role in "Call Me by Your Name."
But Chalamet raised eyebrows this year with an outfit that people thought made him look like a gas station worker.
Chalamet's Prada tracksuit was also compared to Milo Ventimiglia's character Jess Mariano from "Gilmore Girls."
Salma Hayek sparkled on her first Oscars red carpet with a glittering silver gown in 1997.
Hayek, who attended the show with Mexican singer Luis Miguel, looked like a princess in her tiara and Armani gown.
Hayek switched from princess to goddess for the red carpet on Sunday.
The star sported a custom Gucci one-shoulder gown, which she paired with a high bun and Grecian headpiece.
Greta Gerwig made her Oscars debut alongside longtime boyfriend Noah Baumbach in a sparkling yellow dress in 2018.
The night also marked Gerwig and Baumbach's first public outing as a couple.
And the couple walked the red carpet together again on Sunday.
Gerwig, who gave birth to the couple's first child last year, wore an olive-green gown for Hollywood's biggest night.
Gal Gadot made sure she sparkled at her first Oscars in 2018 with a glittering spaghetti-strap dress.
The gorgeous Givenchy gown featured a fringe skirt which, paired with Gadot's bold red lip, looked straight out of the 1920s.
Gadot left the sparkles at home on Sunday, opting for a bold mixture of lace instead.
The "Wonder Woman" star sported a Givenchy ensemble that featured a sheer long-sleeved black top and a full lace pink skirt that looked inspired by the Victorian era.
Although there were no sparkles to be seen, Gadot's classic red lip was back in full force.
Mahershala Ali quickly became a red-carpet favorite after he stunned on the red carpet with this very chic all-black ensemble in 2017.
Ali picked up his first supporting actor Oscar that year for his stirring work in "Moonlight." He won the same award again in 2019 for "Green Book."
And Ali stuck with what works on Sunday, choosing an all-black suit yet again that let his wife's gown really pop.
Ali's wife Amatus Sami-Karim sported an elaborate lavender gown for the show.
Olivia Colman brought the drama for her Oscars debut in 2019 with an emerald-green Prada gown that featured a silk organza cape.
The shawl, which flowed into a train, was covered in Swarovski crystal flowers and took 120 hours to make, according to The New York Times.
It was the perfect gown for Colman to take home her first best actress Oscar for her role in "The Favourite."
Colman debuted her new blonde hair at the Oscars on Sunday.
"The Crown" star also wore a dramatic velvet navy gown by Stella McCartney.
Much like with her debut dress, this ensemble featured long sleeves and a train.
Antonio Banderas brought his first wife Ana Leza to his first Oscars in 1992.
Banderas had just begun making a splash in Hollywood with the help of Madonna. The following year, he would get his big break in the film "Philadelphia" alongside Tom Hanks.
Banderas stuck to a classic tuxedo on Sunday night as he walked the red carpet with his daughter Stella and girlfriend Nicole Kimpel.
Stella, 23, is the daughter of Banderas and his second wife Melanie Griffith. The couple divorced in 2015.
Al Pacino already had two Academy Award nominations under his belt when he made his Oscars debut in 1974.
Pacino, who was 33 at the time, received a best actor nomination that year for his role in "Serpico." He had been nominated the previous year for "The Godfather."
Pacino walked Sunday's red carpet with his longtime pal — and frequent costar — Robert De Niro.
This time around Pacino swapped his classic tuxedo for a chic all-black suit with a patterned jacket. Both Pacino and De Niro were nominated this year for their work on "The Irishman."
- Read more:
- What your favorite celebrities wore to the 2020 Oscars
- Billy Porter was cold in his Oscars red-carpet look so he wrapped himself in a fleece blanket
- The best outfits celebrities wore to the 2020 Oscars
- People think Timothée Chalamet's Oscars tracksuit makes him look like a gas station worker and Jess from 'Gilmore Girls'