The craze follows in the wake of other snappily-named hair fads of the past year, such as galaxy hair, watercolor hair, oil slick hair, unicorn hair, color-changing hair, and glow-in-the-dark hair. If you've tried all of these styles, you should probably take a break. Your follicles must be screaming by now.
But unlike many of these trends, denim hair has a more subtle look. It combines soft shades of blue, green, and gray to recreate the look of a well-worn pair of jeans. It's actually really nice.