In InStyle‘s Annual Hair Issue, we rounded up ten stars that went on major chopping sprees to land key roles. From Demi Moore’s shaved head for G.I. Jane to Natalie Portman’s barely-there hair for V for Vendetta to Anne Hathaway’s Les Miserable pixie, click through the gallery to see them all. And you think your job is demanding? Plus, see more by picking up the new Zoe Saldana-covered InStyle Hair issue, on newsstands now.