Gwen Stefani's outfits always include some kind of customisation ... Sonja told POPSUGAR.com: "From the '90s compared to today, I'd characterise Gwen's style as a beautiful evolution; a mix ...

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.