Eyebrows play a significant role in communication. We all recognize a furrowed brow to indicate displeasure or raised brows to signify surprise. But, beyond just helping us demonstrate and understand emotion, eyebrows are useful for facial recognition. Brows can literally change how we see people. It's no wonder, then, that celebrities who have changed their eyebrows have also dramatically transformed their entire look. Here are some of the most noteworthy transformations to date.