Popsugar Beauty Gwen Stefani Gwen Stefani Beauty Style 2015 15 Times Gwen Stefani Proved That 2015 Is Her Prettiest Year Yet December 28, 2015 by Lauren Levinson View On One Page Photo 5 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 May 31, 2015 In case you were confused, Gwen is number one. Here, she performed at the Bottlerock Napa Valley Music Festival with a matching red nails and lips. Previous Next Start Slideshow Gwen StefaniCelebrity HairCelebrity MakeupCelebrity BeautyBest Of 2015