Prom 2010 Hairstyles. From the chignon to the Mohawk updo, these are the top prom looks in hairstyles for 2010. When it comes to prom hairstyles one of the most popular styles is the look of updos. It’s a classic look that never dies, and this year the labtests twist to the classic updo is wearing a Mohawk in the front, and letting your hair hang down in the back. Other trends turning heads this prom season include the look of the big braid as seen by Serena on Gossip Girl, as well as the messy wavy bun seen by Miley and Selena Gomez. Look below to see trendy styles you can wear to prom for 2010.