Glee's Chord Overstreet won't be wearing much of anything in Thursday's "Naked" episode – and neither will the rest of the guys.

The plot for the episode revolves around the New Directions (once again) needing to raise money for… wait for it… Regionals. This time, instead of doing a commercial for a mattress company, caroling, etc. – they're going to shoot a calendar featuring the sexy "Men of McKinley." Back in December, series creator Ryan Murphy teased about the upcoming episode on Twitter. While from that photo it appears as though Blaine will be Mr. December, and from this one that Sam is Mr. July, Jake is Mr. October and "Teen Jesus" is March's Easter Bunny, the rest of the months are up in the air for McKinley's men.

As for the music, "Naked" will feature a mashup of Nelly's Hot In Here with Centerfold by The J. Geils Band sung by Overstreet, Jacob Artist (Jake), Blake Jenner (Ryder) and Jenna Ushkowitz (Tina). The rest of the episode's songs move away from club beats to more romantic tunes.

The rest of the night's lineup will feature Lea Michelle (Rachel) singing Torn (Natalie Imbruglia, Ednaswap); Artist and Melissa Benoist (Marley) singing Christina Perri's A Thousand Years; Artist singing Neyo's Let Me Love You; Michele, Naya Rivera (Santana) and Dianna Agron (Quinn) singing Sara Bareilles' Love Song and an ensemble performance of This is the New Year… AFTER THE JUMP by A Great Big World.

Check out a behind the scenes look at "Naked":

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