While Keira Knightley stands up for her breasts, let's take some time to admire her natural hair color: brown. While promoting foreign film "The Edge of Love," she showed off a chestnut-hued side twist -- the perfect updo to complement her sweet, romantic look.

While her hair was down, we couldn't help but notice her subtle light golden brown tips -- an eye-catching yet graceful way to work the two-toned look. Worth copying? Most definitely.

See more great shots of Keira in this gallery.

Images: Getty Images