Prom Ponytail Hairstyles. When it comes to prom hairstyles one of the most popular choices is wearing a ponytail. It's chic, fashionable yet stylish and simple. If you're the type of girl who wants a stress free look, or even an extravagant one ponytails can work in both setting. You can wear your style straight, curly, wavy, or even style it to the side. Look below to see creative styles and waves you can wear a ponytail to prom.