Margot Robbie proudly rocked jet-black hair and a big smile with her girlfriends at her prom. The star, now known for more ...

You can have the best of both worlds ... try a half-up, half-down hairstyle for prom like Sydney Sweeney's. You can layer on some bobby pins or even opt for personalized clips like a zodiac ...

but sometimes not all photos end up looking the best. With trends changing throughout the years, from hairstyles to makeup to fashion, you may look back at prom photos with a laugh. More ...