Stars change from Oscars to after-party

Jennifer Lopez swapped plunging neckline for plunging neckline on the night of the Oscars, changing from her cream sheer Zuhair Murad gown for a shimmery burgundy body-hugging gown for the Vanity Fair Oscar Party for the 84th Annual Academy Awards.

Cameron Diaz

Cameron Diaz changed out of her cream colored Gucci gown and into a bright orange curve-hugging dress by Victoria Beckham for the Vanity Fair Oscar Party for the 84th Annual Academy Awards.

Emma Stone

Emma Stone swapped her red Giambattista Valli red carpet gown for a black Chanel dress with sheer cutouts on the skirt for the Vanity Fair Oscar Party for the 84th Annual Academy Awards.

Shailene Woodley

Shailene Woodley changed out of her white floor-length Valentino gown and into an above-the-knee printed Proenza Schouler cocktail dress for the Vanity Fair Oscar Party for the 84th Annual Academy Awards.

Amara Miller

"The Descendants'" young star Amara Miller changed out of her ivory Valentino couture gown into a fun floral party dress for the Vanity Fair Oscar Party for the 84th Annual Academy Awards.

Sarah Hyland

Sarah Hyland changed out of her purple Alberta Feretti gown for a black cocktail dress by Collette Dinnigan for Elton John AIDS Foundation's Oscar Viewing Party for the 84th Annual Academy Awards.