How can anyone forget Katie Holmes as the adorable Joey Potter on Dawson's Creek? And since the show's finale a decade ago this year, Katie has evolved into more than just the girl next door. She's starred on Broadway, become a mother, created her own fashion line, and collaborated with famed makeup artist Bobbi Brown. But through it all, she still seems to maintain her signature casual-cool style. See Katie's top looks over the years, from blond highlights to her oft-copied blunt bob, in celebration of her 35th birthday today.