4. Low-Cut

Low Cut How To Pick The Perfect Hairstyle For Prom

People.com

If your dress has a low scoop-back or a low-cut front, consider leaving your hair down, either completely straightened or with long, extended curls. You can pull pieces of your hair to the front or have it all hang down your back. Another option is to do a low ponytail with curls that you can curl around your shoulder for a relaxed but tidy look.