Glee Season 4 Britney Spears Tribute Spoilers: McKinley Goes Crazy in “Britney 2.0” (PHOTOS)

We’ve already gotten a peek at all the sexually-charged madness that goes down at NYADA during Glee’s upcoming Season 4, Episode 2 Britney Spears tribute, “Britney 2.0.” Now, take a look at what’s happening back at McKinley High School. Between Unique (Alex Newell), Tina (Jenna Ushkowitz), Brittany (Heather Morris) and Marley (Melissa Benoist) — things are about to get real sexy.

Original airdate: Thursday, September 20 at 9/8c on FOX

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