Glee’s 100th episode is fast approaching, and Fox has just released the official summary of what’s about to go down in Season 5, Episode 12: “100.” We won’t get to watch it all until March 18, but since the episode finished filming a while ago, we already have plenty of spoilers about what’s to come.

Here’s the official summary: “Current and past members of New Directions reunite for one final assignment: to reinvent their favorite performances. But these new versions of the series' most iconic tracks should not be seen as goodbye to glee club. On the contrary, they are celebrations of what the club has meant to each and every member.

Not be seen as a goodbye? Right. Because the official cancellation and disbanding of the New Directions won’t come until the following week.

But back to this week. In addition to the return of Quinn (Dianna Agron), Mercedes (Amber Riley), Brittany (Heather Morris), Puck (Mark Salling), and Mike (Harry Shum Jr.), former guest stars Kristin Chenoweth (April) and Gwyneth Paltrow (Holly) will also be back. Oh, and former Gossip Girl star Chace Crawford will be stopping by, as Quinn’s new boyfriend. Because... why wouldn’t Quinn Fabray date Nate Archibald?

Glee’s 100th episode airs on Tuesday, March 18, at 8 p.m. on Fox