Fall's most popular haircut is... the long bob! Julianne Hough, Nicole Richie, Fergie, and Selena Gomez all took inches off their 'dos for the below the chin, collarbone-grazing length recently. And this style is an ever-popular one: Jennifer Aniston famously chopped her strands for the "lob" in February, and a bevy of beauties including Gwyneth Paltrow, Naomi Watts, Elizabeth Olsen, Michelle Obama, and Jessica Alba all worked the look at points in their careers. "I really believe this is a haircut that would work on almost everyone," celebrity hairstylist Mark Townsend tells InStyle.com. Frédéric Fekkai stylist Renato Campora agrees: “It elongates the neck and makes you look more statuesque.” See more of the most memorable hair makeovers of the year in the gallery.