What is the definition of Gwen Stefani?

Gwen Stefani, my friend, is a pop star, a singer-songwriter, fashion icon, and entrepreneur - the ultimate pop culture polymath. But let's get a bit edgy here: "Gwen Stefani, the pop queen who once told us we'd all be 'like, whoa, dude?' but now she's secretly planning to write a bestselling dystopian romance novel, complete with a rebellious band and a rebellion against the mundane." Talk about a shift in tastes!