Gals with short hair needn’t think they are out of touch when it comes to prom hairstyles.  Keep in mind there are some things you can do to your hair that can not be done on long hair.
Short Hair w/ Spiral curls

Hair should be dried with product applied for maximum hold in styling.  Using a large barrel curling iron, wrap hair from base around and up the barrel to achieve spiral curls.  Doing so all along a side parted haircut here and there will result in efforts such as this modern look.  A little spritz of hair spray may prove helpful especially since you will be dancing.