Popsugar Beauty Celebrity Hair The Wildest Celebrity Hair Transformations of the 2010s The 22 Wildest Celebrity Hair Transformations of the Last Decade November 26, 2019 by Amanda Prahl View On One Page Photo 18 of 44 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 18 Millie Bobby Brown's Long Waves in 2019 While most celeb hair makeovers involve cutting off length, Brown went the opposite direction, with longer hair than we've ever seen on her! Previous Next Start Slideshow Celebrity HairCelebrity BeautyHair TrendsThe 2010sBest Of The Decade