Gossip Girl Promo: Will Blair Wed Louis in the 100th Episode?

The 99th episode of Gossip Girl aired this week and it's all leading to the big wedding next week. In the most recent episode, Blair celebrated her bachelorette party. Louis' sister arrived in town and while Blair seemed ready to give her a second chance, Beatrice was just eager to sabotage her soon-to-be sister-in-law. After getting smashed at the party, Blair ended up getting arrested for holding a joint on the streets. In the end, Beatrice seemed to redeem herself and helped bail Blair out of jail.

Nate also learned that his cousin Tripp was the one who sabotaged his car (leading to Blair and Chuck's accident when they got into the wrong limo). He and Serena staged a fight so she could confront Tripp and reveal the scheme to Nate's grandfather. Dan was disappointed after meeting with his publishers, who really just wanted a sequel to his book "Inside" and suggested he continue to date Serena for the publicity.

The next episode of Gossip Girl will be airing on January 30. Blair is poised to walk down the aisle. Her mother, father and step-father all return to town to celebrate the event with her, but we have to wonder whether she'll actually go through with it. The episode will also open with a musical number, featuring Serena as Marilyn Monroe and Blair as Audrey Hepburn.

Watch a trailer below for the 100th episode of Gossip Girl, airing on January 30 at 8/7c on The CW. You can view photos for the episode here.