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"Blair Waldorf's big day has finally arrived! But who's she marrying... or not marrying? We won't spoil that surprise (and let's be honest, these days it could be anyone &mdash; Louis, Dan, Chuck...), but we can share a few fun tidbits from Gossip Girl's milestone 100th episode (Monday at 8/7c on The CW).\n1. A dance sequence?No, not like this. At the show's 100th episode party, Blake Lively gave us this perplexing scoop. In one scene, Serena wears a Marilyn Monroe get-up and sings \"Diamonds Are a Girl's Best Friend\" to suitors Nate, Chuck and Dan &mdash; that is, until someone else steals the show.\nEd Westwick tired of \"lovesick puppy\" Chuck, ready for Gossip Girl to end\n2. A totally tubular serenadeWe all know that Blair has a thing for '80s pop music (remember when Cyndi Lauper performed at her birthday?), so it's no surprise that her royal wedding soundtrack would include a cover of this Pat Benatar hit.\n3. A Princess Bride reference!It's amazing that it's taken the writers this long to have Princess Bride star Wallace \"Inconceivable!\" Shawn, who plays Blair's stepfather Cyrus, reference his iconic role.&nbsp;\"We've been wanting to do it forever,\" executive producer Josh Safran says. Adds executive producer Stephanie Savage: \"Gossip Girl said it, we've had episodes called that, we just finally had to put it in his mouth.\" As you wish!\nGossip Girl \"End of the Affair\" postmortem: Burning questions answered!\n4. Blair's two dadsWho will walk her down the aisle? Her Paris-based biological dad Harold or sage stepdad Cyrus? Why should she have to choose?\n5. Georgina's back!And Girlfriend knows how to work a fascinator (and altar-boy vestments too apparently)! When Georgie-Girl (Michelle Trachtenberg) reappears, it's to sully Blair's marital bliss, but she also has one heck of an exit.\n6. A game-changing revealExecutive producer Josh Safran says the episode is a game-changer. \"I know we've said that before, but unlike any other episode, it really will change the series forever,\" he says. \"There's a revelation that is so big that it could only happen in the 100th episode.\" Hmm, what could it be? A game-changing reveal on a show called Gossip Girl?\nWhat do you think the game-changing reveal is? Check back after the show for our postmortem of the episode!"
<https://www.tvguide.com/news/gossip-girl-wedding-1042285/>