Ever since New York Magazine dubbed Lilli Eve Hymowitz the "prom queen of Instagram," she's been a fixture on our social feeds. And honestly, if you don't follow her on the 'gram yet, do it ASAP — think major style inspo, sunset shots that put ours to shame and epic horseback riding pics (she's a top equestrian... #casual). At just 17, she's accomplished quite a bit... but hasn't been to prom yet. In true cool girl fashion, she plans to throw one next year for her whole group of friends, making her the ideal model to show off prom-perfect looks from our latest collection. Read on for more with Lilli and see how she bosses big-night-out style. Oh, and stay glued to the New In section for these pieces to drop...