A millennial lived every woman's nightmare after she showed up to a wedding wearing the same dress as another guest. Then she had a realization.

Welcome to New Arrivals, where R29 editors test out the latest pieces from their favorite brands and share their top looks.

From traditional black-tie weddings to whimsical garden parties, we asked experts to help us break down what to wear.

Once I had [my mom's dress] on, the idea ... to use the bodice as a top and wear it for one of my wedding events" just "came ...