Spoiler roundup: Gossip Girl is finally back tonight!

Doesn’t it seem like forever since the last new episode of Gossip Girl? I know, I know. It has. Well, tonight a new episode, “The Age of Dissonance,” 2.18, will air on The CW finally and it should be a good one!

Here’s the official episode guide for tonight’s OMG event: The Constance Billard and St. Jude seniors are putting on a production of “The Age of Innocence” (hence, the episode title “Age of Dissonance”) and find their personal lives mirroring conflicts in the play.

Serena (Blake Lively) develops a crush on the play’s director, Julian (guest star Harmon Walsh), and enlists Vanessa’s (Jessica Szohr) knowledge of theater to help her get the otherwise uninterested guy’s attention.

Blair (Leighton Meester) receives devastating news about her future that leads her on a witch-hunt for the person responsible.

Dan (Penn Badgley) and Rachel (guest star Laura Breckenridge) agree to stay away from each other in the aftermath of being discovered as more than teacher and student, but find it impossible to keep that promise.

Chuck (Ed Westwick) enlists help from an unlikely source, his nemesis Carter Baizen (guest star Sebastian Stan, now on the new NBC show Kings).

Now, when we left Gossip Girl last time, Dan and Rachel were in bed together. So there’s going to be good stuff between Dan and Serena if Dan ever comes out of Rachel’s apartment.

Plus, can you imagine Dan and Blair having to play opposites to each other in the school play. If they kiss on stage it’s going to be hilarious!

Follow the jump for links to all of the juicy spoilers for this episode:

This is the main promo clip for the episode and it’s full of OMG moments:

Then there’s this collection of three clips where Vanessa and Nate double dating with Serena and Julian, Serena gets help with Julian from Vanessa, and Chuck runs into to Carter Baizan who is with mystery women Belle (Kate French).

And then the best clips of all for this episode – Serena slaps Dan, Chuck and Blair kiss (OMG) and Blair steals something.

Tonight’s episode is going to rock! I will be live blogging Gossip Girl for the first time tonight at 7 p.m. CST right here at Gossip Girl Report, so be sure to come join me.