Headbands are basically really casual tiaras. Just review the post-Oscars headlines about Lupita Nyong'o—they have the power to immediately transform their wearer into a princess. What kind of princess depends on the band—are you a forest nymph reigning over your evergreen kingdom? Flowers. A Grecian goddess? Grab a metal-leaf halo. Are you daddy's little girl holding court at the country club? An elastic band is a chic way to keep your hair in place for a long day of tennis. Are you an 18th century royal kidnapped by pirates? Wrap a silk scarf around your head and enjoy the fresh seafood. Are you Frank Ocean? Well, you're definitely not a princess, but you look damn good in a headband.