THEN More along the lines of a cinnamon bun, circular and voluminous. The neat style helped a belle de jour played by Catherine Deneuve establish all the proper sophistication of an Yves Saint Laurent–wearing housewife.
NOW It's a fun, flirtier topknot that celebs have fully embraced. Hair is piled high atop the head, and pieces are able to spring free. "An imperfect shape makes it fresher," says Elizabeth Olsen's stylist Mark Townsend.Read MoreLess