Fall 2009 Hairstyles. For the fashionistas who always keep up with the hottest trends of the season the most popular looks for fall 2009 hairstyles. This season is all about sleeked back hair and showing off your bone structure. Many looks are reminiscence of the 80’s as many updos, bouffants, and the most highly used product for fall …hair spray. So many retro styles are making a huge comeback for fall see more below.