My former classmate has singlehandedly brought back the headband. It's on celebrities along with random socialitic hipsters I see in-or-around NYU. The official WWPD verdict: indifference. Unlike certain other trends, this one neither shows bits of anatomy no one wants to see, nor declares one's trendy allegiance to a trendy cause about which one probably knows nothing about, nor costs so much money as to bankrupt your typical lower Manhattan student or non-profit worker. But I cannot imagine a situation in which the addition of a headband would add to, not detract from, an outfit.