Tomorrow night, Glee will tackle the controversial topic of religion on "Grilled Cheesus." Watch a preview for the episode NOW.

The following week, though, the show will take on a far more light-hearte subject: duets.

On the aptly-titled installment "Duets," various pairings will cover various singles. Among them: Rachel and Finn on “Don’t Go Breaking My Heart;" Rachel and Kurt on a mash-up of “Get Happy” and “Happy Days are Here Again”; Sam and Quinn on “Lucky;"  Mercedes and Santana on “River Deep, Mountain High”; and most Mike and Tina on “Sing."

Hurry up and listen to the following snippets of these duets below, before Fox removes the video from YouTube...

[video url="http://www.tvfanatic.com/videos/glee-duets/" title="Glee Duets"] [/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.