Jennifer Lawrence has been on a stylish streak during award season, but her two Oscars looks took her red-carpet style cred to new heights last night. The actress was on cloud nine after her Oscars win for best actress in Silver Linings Playbook wearing a voluminous pale pink Christian Dior Couture gown accessorized with simple Chopard jewels and a white and silver clutch. For the Vanity Fair afterparty, the actress swapped out her elegant gown for a much sexier silver Calvin Klein gown featuring a deep V-neck and formfitting silhouette. One gorgeous award-winning actress, two completely different knockout looks. Which look do you love most?Vote on all of our Oscar polls here!