Popsugar Beauty Hair Best Celebrity Hair Before and Afters Nothing to See Here, Just the Most Cutting Edge Celebrity Hair Transformations of 2019 11 December 2019 by Lauren Harano View On One Page Photo 21 of 110 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by Allison Williams (@aw) on Dec 19, 2017 at 8:05am PST Share This Link Copy ← Use Arrow Keys → 21 Allison Williams: Before After going from bright blond back to her roots, Allison Williams shook things up yet again. Previous Next Start Slideshow HairBest Of 2019Before And AfterCelebrity Beauty InstagramsHaircutsCelebrity Hair