Unquestionably cool, Gwen Stefani's style evolved from the '90s to starring on The Voice. From her hair to her abs, the Instagram favorite leaves no doubt that she's always on point.

"You don't think I'm Gwen Stefani anymore," she continued ... dress featuring a fringe skirt and a cutout to show off her abs. On the red carpet, Cyrus gave fans a glimpse of her figure in ...