01of 23Bob Riha, Jr./GettyLady in red! Anne Hathaway looked stunning in a strapless red Valentino gown. The actress was gearing up to host the show alongside James Franco.
01of 23
Bob Riha, Jr./Getty

Lady in red! Anne Hathaway looked stunning in a strapless red Valentino gown. The actress was gearing up to host the show alongside James Franco.
02of 23Frazer Harrison/GettyReese Witherspoon’s black-and-white strapless Armani Privé gown paired with her high ponytail became an instantly iconic look.
02of 23
Frazer Harrison/Getty

Reese Witherspoon’s black-and-white strapless Armani Privé gown paired with her high ponytail became an instantly iconic look.
03of 23Jeff Vespa/WireImageHalle Berry has worn her fair share of show-stopping red carpet gowns through the years, and her 2011 Marchesa was no exception.
03of 23
Jeff Vespa/WireImage

Halle Berry has worn her fair share of show-stopping red carpet gowns through the years, and her 2011 Marchesa was no exception.
04of 23Jeff Vespa/WireImageSandra Bullock — who had taken home her own Academy Award in 2010 forThe Blind Side— looked red hot in Vera Wang.
04of 23

Sandra Bullock — who had taken home her own Academy Award in 2010 forThe Blind Side— looked red hot in Vera Wang.
05of 23Keith Urban and Nicole Kidman.Kevin Mazur/WireImageNicole Kidmanbrought her husband Keith Urban along as her date, and wore a beaded Dior gown for the occasion. She was nominated for Best Actress forRabbit Hole.
05of 23
Keith Urban and Nicole Kidman.Kevin Mazur/WireImage

Nicole Kidmanbrought her husband Keith Urban along as her date, and wore a beaded Dior gown for the occasion. She was nominated for Best Actress forRabbit Hole.
06of 23Ethan Miller/GettyScarlett Johansson wore a magenta Dolce & Gabbana number with an open back and lots of lace.
06of 23
Ethan Miller/Getty

Scarlett Johansson wore a magenta Dolce & Gabbana number with an open back and lots of lace.
07of 23Kevin Mazur/WireImageGwyneth Paltrow dazzled in silver Calvin Klein Collection on the red carpet. She may look calm and collected, but the staradmittedthat the 2011 Oscars were responsible for “the most terrifying moment” of her life: Her performance of “Coming Home” fromCountry Strong, which was nominated for Best Original Song.
07of 23
Kevin Mazur/WireImage

Gwyneth Paltrow dazzled in silver Calvin Klein Collection on the red carpet. She may look calm and collected, but the staradmittedthat the 2011 Oscars were responsible for “the most terrifying moment” of her life: Her performance of “Coming Home” fromCountry Strong, which was nominated for Best Original Song.
08of 23Craig Barritt/GettyIn 2011, Jennifer Hudson looked stunning in a bright orange Atelier Versace halter number. The Academy Award winner was there as a presenter.
08of 23
Craig Barritt/Getty

In 2011, Jennifer Hudson looked stunning in a bright orange Atelier Versace halter number. The Academy Award winner was there as a presenter.
09of 23John Shearer/GettyAll that glitters is…Mandy Moore’s golden gown! The star sparkled on the red carpet in a Monique Lhuillier look fit for a princess. And good thing, because she was there to perform a song from the Disney movieTangled, which was nominated for Best Original Song.
09of 23
John Shearer/Getty

All that glitters is…Mandy Moore’s golden gown! The star sparkled on the red carpet in a Monique Lhuillier look fit for a princess. And good thing, because she was there to perform a song from the Disney movieTangled, which was nominated for Best Original Song.
10of 23Kevin Mazur/WireImageNominated for Best Actress for her role inWinter’s Bone, the then-newcomer Jennifer Lawrence looked like a seasoned pro in her sizzling Calvin Klein Collection column.
10of 23

Nominated for Best Actress for her role inWinter’s Bone, the then-newcomer Jennifer Lawrence looked like a seasoned pro in her sizzling Calvin Klein Collection column.
11of 23ROBYN BECK/AFP via GettyHelena Bonham Carter flashed some leg — and a Union Jack garter — on the red carpet.
11of 23
ROBYN BECK/AFP via Getty

Helena Bonham Carter flashed some leg — and a Union Jack garter — on the red carpet.
12of 23Bob Riha, Jr./GettyCamila Alves and Matthew McConaughey made for one gorgeous couple on the 2011 Oscars red carpet. One year later, the pair would marry.
12of 23

Camila Alves and Matthew McConaughey made for one gorgeous couple on the 2011 Oscars red carpet. One year later, the pair would marry.
13of 23John Shearer/GettyBest Actress nominee Michelle Williams wowed in an elegant beaded Chanel Haute Couture gown and cropped haircut.
13of 23

Best Actress nominee Michelle Williams wowed in an elegant beaded Chanel Haute Couture gown and cropped haircut.
14of 23Pascal Le Segretain/GettyHilary Swank floated intothe Oscarsin an ombré feather and sequin Gucci number.
14of 23
Pascal Le Segretain/Getty

Hilary Swank floated intothe Oscarsin an ombré feather and sequin Gucci number.
15of 23Kevin Mazur/WireImageJavier Bardem and Penélope Cruz hit the red carpet for the first time since welcoming their son in January of that year.
15of 23

Javier Bardem and Penélope Cruz hit the red carpet for the first time since welcoming their son in January of that year.
16of 23Steve Granitz/WireImageMila Kunis was a vision in lacy lavender Elie Saab. Her first Oscars, Kunis was there with the cast ofBlack Swan, which was nominated for Best Picture.
16of 23
Steve Granitz/WireImage

Mila Kunis was a vision in lacy lavender Elie Saab. Her first Oscars, Kunis was there with the cast ofBlack Swan, which was nominated for Best Picture.
17of 23Jeff Kravitz/FilmMagicJustin Timberlakebrought his mom, Lynn Harless, as his date. He was in attendance with the cast ofThe Social Network, which was up for Best Picture.
17of 23
Jeff Kravitz/FilmMagic

Justin Timberlakebrought his mom, Lynn Harless, as his date. He was in attendance with the cast ofThe Social Network, which was up for Best Picture.
18of 23Jeff Vespa/WireImageA pregnant Natalie Portman took home the Oscar for Best Actress for her performance inBlack Swanin eggplant Rodarte.
18of 23

A pregnant Natalie Portman took home the Oscar for Best Actress for her performance inBlack Swanin eggplant Rodarte.
19of 23ROBYN BECK/AFP via GettyFlorence Welch looked ethereal as she arrived for the Academy Awards in 2011. The Florence + The Machine singer performed “If I Rise” from127 Hours, which was nominated for Best Original Song.
19of 23

Florence Welch looked ethereal as she arrived for the Academy Awards in 2011. The Florence + The Machine singer performed “If I Rise” from127 Hours, which was nominated for Best Original Song.
20of 23MARK RALSTON/AFP via GettyChristian Bale and Mark Wahlberg, who both starred in the Oscar nominated filmThe Fighter, posed for a photo before the ceremony.
20of 23
MARK RALSTON/AFP via Getty

Christian Bale and Mark Wahlberg, who both starred in the Oscar nominated filmThe Fighter, posed for a photo before the ceremony.
21of 23Ethan Miller/GettyCeline Dion graced us with her presence at the 2011 awards alongside husband René Angélil, and performed “Smile” for the show’s In Memoriam tribute.
21of 23

Celine Dion graced us with her presence at the 2011 awards alongside husband René Angélil, and performed “Smile” for the show’s In Memoriam tribute.
22of 23

23of 23Kevin Mazur/WireImageAmy Adams shined on the carpet in a stunning navy blue L’Wren Scott gown. She was nominated for Best Supporting Actress for her role inThe Fighter.
23of 23

Amy Adams shined on the carpet in a stunning navy blue L’Wren Scott gown. She was nominated for Best Supporting Actress for her role inThe Fighter.
source: people.com