PHOTOS: “Gossip Girl” Celebrates 100 Episodes With A Huge Musical Number

“Gossip Girl” will be celebrating a huge milestone on January 30 – they’re 100th episode!

We just got some pics from the episode and Blake Lively and Leighton Meester will be going retro for the opening scene channeling their inner Marilyn Monroe and Audrey Hepburn.

The big episode will open with a musical dream sequence featuring Serena (Blake Lively), Blair (Leighton Meester) and all the men in their lives (Penn Badgley, Chace Crawford, Ed Westwick and Hugo Becker). Also, while Chuck (Ed Westwick) wrestles with the reality that Blair is about to walk down the aisle with Prince Louis (guest star Hugo Becker), the return of Georgina Sparks (guest star Michelle Trachtenberg) might make the royal affair a royal disaster.

We can’t wait! The girls look gorgeous and the guys are definitely looking good in those tuxes.

Photo Credit: Giovanni Rufino / The CW