Mary-Kate Olsen is being named the worst dressed actress to appear at the Metropolitan Museum of Art Costume Institute Gala in New York on Monday, May 5th.

Apparently Mary-Kate didn’t get the memo that the fashion Gala was not an actual costume party. Many other A-list celebrities dressed to perfection attended the event.

The Gala was held in honor of the museums new exhibit Superheroes: Fashion and Fantasy. The exhibit will be at the Metropolitan Museum of Costume Art Institute from May 7th to September 1st.

Take a look at the photos of the other fashionable celebrities below.

So what do you think does Mary-Kate need to fire her stylist? I think that she is by far one of the worst dressed celebrities in Hollywood.

Yeah… Really don’t understand the whole mask thing. Kinda creepy. It’s totally vibing a mix of Vanilla Sky and the JabbawockeeZ.Mary-Kate and Ashley Olsen were two of the people caught wearing these ridiculous masks to conceal their identity and presence at the their stylist friend’s, Estee Stanley’s, wedding at the Oviatt Hotel in Downtown LA, on Saturday.This is the same wedding that we saw Justin Timberlake and Jessica Biel and other celebs, wearing black at. Which I don’t quite understand either. Who has all their guests wear black to their wedding. Isn’t it more like a funeral then?