Gwen Stefani has been turning heads since she came onto the scene in the '90s. And while her wild style and makeup choices have evolved, her no-holds-barred attitude has remained a permanent fixture in her career.

The Grammy Award-winning singer made it big as the lead singer of No Doubt, and now she's a head judge on The X Factor.

Whether she's on or off the stage, we can't get enough of the talented celebrity. Click through for our favorite throwback (and current) pictures of the superstar.