Glee

Glee has been off the air for almost a month (yes, we're still drying our eyes from this, too), but doesn't that mean the cast behind the Fox musical comedy hasn't been hard at work.

And now the cast is taking Gleeks behind the scenes of an upcoming performance of the worldwide hit "Gangnam Style" by Psy.  "You know we had to do it," Kevin McHale says. In the video, featuring a rare sneak peek at the show's dance rehearsals, the cast gets right into the intricate dance moves associated with the song as Chord Overstreet rocks Psy's signature sunglasses. In addition to the performance, which will air in late November, the video also gives away a few spoilers for those looking extra closely. For example, who is that blonde female all the way to the left dancing with Jake (Jacob Artist). Could it be New Directions-hater Kitty (Becca Tobin)?

New Glee photos: Mike and Mercedes return to help spread Grease lightning!

Watch the video and see what other spoilers you spot:

Are you excited to see Glee's full "Gangnam Style" performance? Or do you think this is the wrong song choice for Sectionals? Sound off!