blue and white dress High Low Strapless Floral Prom This enchanting blue mini dress showcases a delicate floral print on sheer chiffon A-Line Sweetheart Blue & White

A cutaway collar always sends off some Italian vibes, so what better to match that than a pair of double monk straps

Wtoo by Watters Laurie Square-Neck Bow Satin Wedding Gown With its elegant square neckline and charming bow details, this satin number feels like it's been plucked right from the Regency era, but with all the modern sophistication to make your special day feel timeless

Maybe drop everything and take two or three loved ones for all occasions

L'Officiel refers to Mireille Darc as one of the "great godmothers-icons" of the backless, black dress

The annual event is held to raise funds for the Costume Institute in New York

Here are a few things to keep in mind as you pick out your outfits and tell your guests what to wear: How formal