L’Oreal has signed actress Diane Keaton as a new spokesmodel for the company. Keaton, at 60, still retains that fresh and youthful look despite vowing never to have plastic surgery. Millions will remember her most popular roles as the intelligent but ditzy love interest in the Woody Allen film, Annie Hall, and the casual tomboyish fashions she sported. Spirited, talented and an icon of American beauty, Keaton will be a role model for women of all ages, seeking to find their own beauty style.