TWO-PIECE DRESSES

Separates, including crop top and skirt options, have become a go-to in formal dressing, in part because of added versatility, according to Kayleigh McPeck at special-occasion brand Faviana. “The top from a two-piece dress can be worn with a classic pair of denim jeans for after-prom fun,” McPeck says, “and girls can even throw on a pair of strappy sandals to make their favorite boho off-the-shoulder dress a bit more casual.”

J.C. PENNEY This look combines multiple trends, including crop-tops and full skirts. My Michelle Sleeveless Sequin Dress Set from J.C. Penney, $52.99.