Popsugar Beauty Celebrity Beauty Gwen Stefani's Natural Hair Colour Is Darker Than You Think Gwen Stefani Has Been Platinum For Decades, but Do You Know Her Natural Hair Colour? 9 September 2019 by Sarah Siegel View On One Page Photo 9 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 Gwen Stefani With Blonde and Black Hair Stefani channelled Cruella de Vil in 1999 with blonde and black hair. Previous Next Start Slideshow Celebrity BeautyBlond HairHair ColourCelebrity HairGwen Stefani