The music of Britney Spears is about take over Glee again, and this time around the show is not that innocent. In Glee’s September 20 episode titled “Britney 2.0,” the gang will tap into their sexy sides with covers of “Hold It Against Me,” “Womanizer” and “Gimme More.” In the video below, Darren Criss, Heather Morris, Chord Overstreet and the show's newest cast members all share snippets of their performances and let fans know what to expect from this electrifying episode. Take a look!