Halloween is almost here and Fox's hit show Glee is taking on The Rocky Horror Picture Show to celebrate the spooky holiday! 

In the upcoming episode, perfectly titled The Rocky Horror Glee Show, Matthew Morrison reveals that he, Chord Overstreet & Cory Monteith will be shedding their clothes and showing some skin  "It's abtastic," says Morrison who plays Glee teacher, Will Schuester on the musical show. 

Check out this behind-the-scenes video look of the new episode:

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In the video, Chris Colfer reveals that he is taking on the role of Riff-Raff in the episode.  Colfer says he 'begged' to play the role because he considers it "the best character in the show."

If you can't wait to hear the songs, listen to the entire cast singing Time Warp:

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The Rocky Horror Glee Show airs on October 26th!  Will you be watching!?