Posted by babu 11:32am GMT
Whether to cover never-before-seen grays or transform a look, switching hair color can be be a life-changing experience.
What's been your most dramatic change in color? Have you ever gone for a look-at-me hue, like Lady Gaga's?
Season 4 premieres New Year's Day at 9.8c!
Play live every Thursday at 9.8c!
Watch a sneak peek full episode now!
Watch the season finale now!
Watch full movies now!
Watch full episodes online, day or night!