Updo hairstyles are always appreciable for any formal occasion – whether it is a prom night or a wedding ceremony. The variations in updo hairstyles are limitless. Creating a classic updo hairstyle becomes very easy if you have long hair. It must also be stated that present day hairstylists have come up with interesting updo variations that can be created even if you have short medium length hair. In fact, updos are not just made for formal occasions; casual messy updos have become immensely popular among teenagers and young women. If you are still in doubt regarding popular updo hairstyles, take ‘inspirations’ from celebs like Selena Gomez, Jessica Alba or Eve Longoria.