Free your social calendars, Gleeks: You are invited to the Sadie Hawkins dance on January 24.

When this Fox comedy finally returns from hiatus, the girls of New Directions will organize the classic dance in which females ask males to accompany them for the evening. Who will go with whom?

The newly-released don't reveal the answer. But we do know Ashley Fink will reprise the role of Lauren on the episode, while Blaine, Artie and company will wow us with a number...

Elsewhere on this Glee Season 4 installment, look for Sam to become convinced that the Warblers cheated at Sectionals, making it it his mission to find the evidence; while Kurt attempts to find his niche at NYADA.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.