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Looking to watch Gossip Girl Season 4 Episode 15 online? TV Fanatic is your destination for every paid and free streaming option of the Gossip Girl S4E15 full episode from 2 affiliates.

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Episode Details

Gossip Girl Season 4 Episode 15: "It-Girl Happened One Night"

With Russell Thorpe poised for a takeover attempt of Bass Industries, Chuck makes one last-ditch effort to save his family's company. Blair is given a challenging assignment at W.