If your hair is above shoulder length, you can still wear it down and look prom-worthy with Lily's loose waves! Spritz your hair with sea salt spray for extra texture, then blow dry your strands with a round brush. Use a 3/4 inch curling iron to create loose waves, separating the curls with your fingers after they cool. Finish with a healthy dose of flexible hairspray. MORE: Best Short Haircuts Of All Time!