The Costumes on ‘Gossip Girl’ 2.0 Cement the New World Order of the Upper East Side

Early in the first episode of the new “Gossip Girl,” as the latest batch of the coolest kids from Constance Billard and St. Jude’s watch newcomer Zoya Lott (Whitney Peak) approach the hallowed Met steps, resident mean girl Monet de Haan (Savannah Lee Smith, in pitch-perfect bitch) snipes, “She’s wearing a headband,” with the kind of disgust typically reserved for, say, stepping in dog poop on the sidewalk.