Gossip Girl has been on hiatus for a week, but new episodes return tonight.  Blair is moving ahead with the wedding planning and Dan is enjoying being a famous author, but trouble is just around the corner.

Dan's book continues to do well.  He's promised the movie rights to Serena, but insists on writing the screenplay himself.  But already it looks like there might be friction, as Serena's boss, Jane, has some suggestions that he is not very happy about.  Blair, decked out in a rather ridiculous hair accessory, brings together all of her former minions and puts the ladies through the ringer for the opportunity to be a bridesmaid in her upcoming royal wedding.  But in one of the trailers below, Louis seems very upset about what he read in the paternity test.  Was Blair lying about the prince being the father of her baby as some have speculated, or are we simply being teased?

Nate's continued secret affair with Diana is jeopardized, not only because she wants them to continue to fly under the radar, but also because it seems like he may not be her only boyfriend.  So he decides to cozy up to Charlie in order to make Diana jealous.

Below are a trailer and an episode preview for tonight's all new episode of Gossip Girl.  To view photos for the episode, click here.  And make sure to read our collection of spoilers for the upcoming 100th episode of Gossip Girl here, which heralds the return of a former recurring guest star.