Ready to do the "Time Warp" again?In this behind-the-scenes peek at the "Rocky Horror Glee Show" Halloween episode airing Tuesday, Oct. 26, Matthew Morrison promises that it will be an "abs-tastic" show. Not only will he bust out his six pack, but so will Cory Monteith and the oft-naked Chord Overstreet.Less sexy but no doubt equally fascinating is Chris Colfer as we've never seen him before. He begged to play Riff Raff, and we think he secretly wanted to wear a partial bald cap. Funny, somehow we didn't peg Jayma Mays as a "Rocky Horror" devotee. She's certainly not Emma!We're liking the glimpse of all the costumes we've been seeing. How many can you name/place?Follow Zap2it and Zap2itHanh on Twitter and Zap2it on Facebook for the latest movies, TV and celeb news.