Glee This Week: Cast Does Mash-Ups; New Character Sings

Glee returns Tuesday night with an episode called "Never Been Kissed," in which Kurt meets Blaine, an openly gay student who's a member of a glee club at a rival school.  Darren Criss, who plays Blaine, makes his big Glee singing debut with a version of Katy Perry's "Teenage Dream."

Meanwhile, the boys and girls of New Directions take on some pretty bizarre mashups.  The boys combine two hits originally sung by female groups -- En Vogue's "Free Your Mind" and The Supremes' "Stop! In the Name of Love."  The girls then combine two classics originally sung by males -- Bon Jovi's "Livin' on a Prayer" and the Rolling Stones' "Start Me Up."

Check out a preview below.

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