Popsugar Beauty Hair Reese Witherspoon's Natural Hair Colour Reese Witherspoon Might Be "Legally" Blonde, But That's Not Her Natural Hair Colour 2 September 2019 by Sarah Siegel View On One Page Photo 3 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Reese Witherspoon With Blonde Hair In 1994, Witherspoon became a blonde and attended the premiere of Backbeat with her new hair colour. Previous Next Start Slideshow HairCelebrity BeautyHair ColourCelebrity HairReese Witherspoon