Best Prom Hairstyles for Long Hair

Beyoncé's sleek "lob" (a.k.a. "long bob") is easily doable, even for girls without stick-straight hair.

How to do it: "Start with getting a great geometric cut a few weeks before the prom," says celebrity stylist Ron King of bô Salon in Austin, Texas. For wavy hair, use a flat brush to blow out kinks while hair is still damp. Follow with a flat iron and shine serum, focusing on ends. For straight hair, blow-dry as usual and use a flat iron to get super-smooth.