Prom night dresses comes in all sorts of styles. Choosing just one may be too hard to do, so it is best to know what your choices are. One popular design among young girls is the baby doll dress which is typically very short and cute. It usually fits at the top and flows at the bottom with a high waistline in between. Baby doll dresses usually come with a tied ribbon or belt around the stomach area to give the dress look. One-shoulder prom dresses have only one shoulder strap, of course, with the other side being sleeveless. These are usually long and elegant gowns.