2011 Summer Hairstyles, hair trends and hair ideas. Top hair trends to follow from New York Fashion Week. This summer one of the biggest hair trends that ruled the runway was the look of twisted updos, messy buns, and high buns or ponytails. For the girls that are laid back and want a easy summer style this look is a must have. Braids and twist as a whole are making a huge comeback this season and the look can easily be applied to any updo or down style of your choice. For those that like a more glamorous style top trends include looks of tight waves and curls, blunt bangs, extreme side parts, and the french twist. Look below to see the styles worn on the runway.