2010 Prom Updos. The number one hairstyle for prom will always be prom updos, girls love the look since it is convenient and it works with any formal dress or formal setting. You can wear your up with hair accessories, curly, straight, pined up, pinned down and the list goes on and on. Pair it with braids, waves, or any other look you may want to achieve. Look below to see chic 2010 prom updos.