Eva Longoria
Eva brought the heat in this sizzling dress by the Dominican designer.
Jessica Biel
The actress glowed in this metallic creation by de la Renta.
Claire Danes
The Homeland star took a chance on one of the designer's more edgier looks—and it paid off!
Zooey Deschanel
The New Girl star was the definition of modern elegance.
Tina Fey
The comedian has made many a best dressed lists thanks to her affinity for de la Renta gowns.
Lea Michele
The Glee star's go-to designer for major red carpets? Oscar de la Renta, of course.
Isla Fisher
The star wore this sexy, silky silver dress to the 2014 SAG Awards.
Carrie Underwood
The country singer looked like a fairy princess in this magical number.
Jessica Chastain
The Help actress was on of de la Renta's biggest fans.
Jessica Alba
The mother of two showed off her figure in a form-fitting melon-hued strapless gown with a gorgeous mermaid tail at the 2013 Golden Globes.
Emma Watson
Just wait until you see the back! Emma slayed yet again in a de la Renta look.
Ginnifer Goodwin
The Once Upon a Time star was pretty in pink at the 2012 American Music Awards in an adorable cocktail dress embellished with dazzling silver sequins.
Penélope Cruz
For the 2011 Met Gala, the Spanish beauty selected a banded silk organza gown with a dramatic mermaid tail from the designer.
Claire Danes
The designer mixed hard and soft with this two-tone look.
Lupita Nyong'o
In her whirlwind year, the Oscar winner wowed us in every major designer include, of course, Oscar de la Renta.
Allison Williams
The Girls star looked georgeous at the 2014 Met Gala.
Jessica Biel
The star opted for sparkly separates from the designer, including a sequined tunic and pants. Though de la Renta is known for his feminine designs, he's no stranger to pant suits, having created a number of colorful jacket-and-pant pairings for Hillary Clinton.
Amy Adams
For big events, Amy often opted for Oscar. Such was the case at the 2009 Golden Globes.
Taylor Swift
The stylish singer opted for a fun and feminine look with a fit-and-flare tulle dress decorated with gorgeous gold lamé embroidery at the 2012 Ripple of Hope Gala.
Kristin Davis
Oscar's polka dot gowns were playful yet elegant.
Anne Hathaway
The Les Misérables star went for a simple yet elegant look at the 2013 Critics' Choice Movie Awards with a beautifully beaded floor-length gown.
Jessica Chastain
The Zero Dark Thirty star was lovely in a lace Oscar de la Renta pre-fall 2013 dress for an appearance on the Late Show with David Letterman.