The blonde actress wore a Jason Wu Fall 2011 gown.
Her black chiffon gown with a lace yoke is accented with a gold waistband.
It’s not easy following Karlie Kloss in any look, but Sarah made this look her own by taking the Old Hollywood route with her flawless styling.
Her red lips are perfection.
I’m dying for that muted shade and her 1940s hairstyle which is becoming quite a celebrity trend.
Credit: Style.com & Getty