royal blue babydoll dress The Keisha a square neckline to complement your decolletage Dream All Day Babydoll Dress

Credit: Matt Baron/BEI/Shutterstock She'll Never Go Out of Style Swift wore a crop top and skirt by Roberto Cavalli

In terms of accessories, look for tinted, colored, or rimless sunglasses, a bulbous digital watch, a trucker cap, or streaky hair highlights

You want something more glam than what you would wear to church or work, so think dramatic details or sparkle and shine

This is not nostalgia for nostalgias sake

Meets the experts Lauren Kay is the executive editor of The Knot and The Bump and is based in New York City

Princess Diana was no stranger to a fashion moment, but there is one dress that will forever be cemented into history: her iconic revenge dress. This week photos of on-set photos of Elizabeth Debicki, who will be stepping in to portray the former Princess of Wales opposite Dominic West as the prince, spread across social media as she rocked an almost identical re-creation of the black dress