Spotted: September 19, 2007. 💋 The day #GossipGirl first landed on our screens and introduced us to the Upper East Side’s most scandalous secrets, iconic looks and complicated love stories. One episode turned into six seasons, countless betrayals and a whole lot of drama. And the rest, darling, is history. XOXO. 📸 Getty Images #BlakeLively #LeightonMeester #PennBadgley #EdWestwick