Watch Gossip Girl Season 3 Episode 17 online via TV Fanatic with over 6 options to watch the Gossip Girl S3E17 full episode. Affiliates with free and paid streaming include iTunes, Vudu, Netflix, YouTube Purchase, Google Play, and Verizon On Demand.
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Chuck and Blair are faced with the most difficult decision ever. Serena plans a surprise birthday party for Nate, but Jenny does her best to sabotage it.