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"Gossip Girl" chooses Vera Wang for its royal wedding

Leighton Meester as Blair Waldorf and Hugo Becker as Louis on "Gossip Girl." The CW Network

(CBS) Kate Middleton, Charlene Wittstock and now, Blair Waldorf.

Coming off a year of royal weddings, "Gossip Girl" is having one of its own during the show's 100th episode, airing Monday night.

Blair (Leighton Meester) will don a Vera Wang gown for her wedding to Prince Louis of Monaco.

"[It's] so couture but has that old-world feeling to it that makes sense for who Blair Waldorf is, becoming the Princess of Monaco," costume designer Eric Daman said of the dress in a video clip on People. "I think what the wedding is going to look like is going to set the bar for what the 100th episode is."

The princess-to-be's maid of honor, best friend Serena van der Woodsen (Blake Lively), will also wear a gown by Vera Wang for the nuptials, while the bridesmaids' dresses are from the designer's line for David's Bridal, White by Vera Wang.

The Daily Mail reports that when the episode was filmed in November, Meester (as Blair) was spotted running through the streets of the city - fueling speculation that she might leave her prince at the altar, perhaps in favor of longtime on-again, off-again love Chuck Bass (Ed Westwick).

The episode will also feature royalty of the Hollywood kind, with a dream sequence featuring Serena as Marilyn Monroe and Blair as Audrey Hepburn.

"Gossip Girl"'s 100th episode airs Monday at 8 p.m. ET on the CW.

Tell us: Does Blair's wedding gown look fit for a princess?

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