If there is one thing we can expect from Gwen Stefani's red-carpet style, it's the unexpected. From bindi details to crop tops with cargo pants, the No Doubt lead singer is all about channeling her rocker-girl vibe in full force, and tonight's outfit proved to be one cool incarnation. She styled an embellished black-and-white Balmain cardigan over a black bralette top, skintight leather leggings, and a pair of sleek black D'Orsay pumps. As for the finishing touches? Gwen kept it sweet and simple with her makeup and hair, only adding a diamond-encrusted cross necklace for a little extra sparkle. Are you a fan of her AMAs ensemble?Make sure to vote in all of our 2012 American Music Awards red-carpet polls here!