Who was Michelle Obama wearing on election night?

When Michelle Obama took the stage with her victorious husband Tuesday night in Chicago, she opted to wear Michael Kors.

The designer said in a release this morning that he was "pleased to announce" Mrs. O. wore a "magenta silk chine pintucked dress."

Like Kate Middleton, it was a recycle for FLOTUS.

She wore the dress during a Medal of Honor ceremony in Washington on Nov. 16, 2010, adding a pin to the little black jacket. (She also sported a pin on Tuesday night.) And she wore it in 2009, without the jacket, for a dressier, holiday look.

Four years ago, Mrs. O. sported a dress by Narciso Rodriguez, who just happens to be unveiling a new line for Kohl's today.

What do you think of the first lady's election night choice?