This year’s biggest prom trends are all inspired by pop culture. Sydney Sweeny shot to fame playing Cassie on “Euphoria.” Her character wears a curve-clinging mini dress to prom. Outrageous Boutique on Long Island, New York, has similar dresses. If you want to go way back in time, there is a “Bridgerton” inspired ball gown. Margot Robbie’s “Barbie” is also inspiring dreamy prom dresses.