A whole decade later, the '90s grunge trend is back, and we have to say we're pretty stoked about it. And so are our favorite celebrities. The latest round of pretty faces to style themselves in grunge gear are Hilary Duff, Vanessa Hudgens, and Ashley Benson, who all managed to make the trend work in no time, thanks to one shockingly simple styling trick from the era: tying a flannel shirt around the waist.

Hilary matched hers with a gray tee and black leggings, Vanessa traveled with denim cutoffs and Ash boots, and Ashley took a sportier approach in cropped pants, a baseball cap, and sneakers. Are you feeling the flannel-around-the-waist look? And if you're willing to spend a little more time and effort on channeling this '90s revival, here's how to get the look at home.