Credit: Giovanni Rufino/The CW 2012 The CW Network Photo: Blair With Her Dads in Gossip Girl Season 5, Episode 13: "G.G"

“Before they get hitched, there’s just one hitch. Make that, two hitches.” So says the ominous narrator in the very first look at Blair’s Royal Wedding aka Season 5, Episode 13: “G.G.” aka the 100th episode extravaganza!

So much is happening! It’s moving so quickly! Can you even keep up? Luckily for you, we break down each little scene of the 17 second preview so you may relish a more in-depth look at next week’s sure-to-blow-your-mind barn burner!

Ready? Set? Go.

Credit: YouTube Photo: Gossip Girl's Royal Wedding — Sneak Peek of Season 5, Episode 13: "G.G." [VIDEO]

Serena says: It’s going to be the best day of your life!

Blair is SMILING. With a veil! And you can see the church in the background!

Now she’s walking down the aisle with Cyrus and her real dad.

Louis and the bridesmaids and groomsmen are watching — and so is the packed church!

Lily is whispering to Nate! What is she saying? Is she saying Blair looks pretty? Or that she wishes this wasn’t happening?

CHUCK DOES SHOW UP when Blair and Louis are at the altar!

Chuck TELLS Blair not to marry Louis!

GEORGINA ARRIVES with a smug little smirk on her face! And she shushes someone!

“Bless us father, for we’re about to sin.” She’s wearing a choir boy outfit! But pulling up some saucy hose. She’s peeking through a door!

Serena looks surprised! Dan looks surprised!

Serena, Dorota, and Mama vdW are all SUPER surprised!

Blair and Serena turn to each other in shock!

Georgina peeks her head above the holy bible.

...We’ve never wanted it to be a Monday quite so terribly.

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