Big Spoiler Alert! (Biggest Gossip Girl Spoiler Ever)
"Gossip girl here, your one and only source into the scandaleous lives of Manhattan's elite."
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The biggest shocker on last Monday's (January 30th, 2012) 100th episode of Gossip Girl (5x13) wasn't Blair Waldorf's (Leighton Meester) royal wedding dress, Serena Van der Woodsen's (Blake Lively) renewed love for Dan Humphrey (Penn Badgley) or Blair's totally mortifying moment at the altar with Prince Louis.