Prom Hairstyles 2010. The best styles to wear in hair trends for prom 2010. When it comes to the hottest looks in prom hairstyles for 2010 it's all about the updo. Updo hairstyles are classic looks that work for any prom season. Other popular trends in prom hairstyles to wear this year are taken from celebrities. Styles such as braids, the mohawk, tight curls, romantic waves, chignon buns, and retro styles. The look of 40's waves makes a great classic look for prom. Look below to see celebrities wearing the best prom hairstyles for 2010