Rachel belts out a version of "Merry Christmas Darling" in this video. It's courtesy of the episode "A Very Glee Christmas."
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Kurt and Blaine team up for "Baby It's Cold Outside" in this clip from "A Very Glee Christmas." Is this adorable or what?!?
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Are you ready for a very special Glee Christmas? You will be after watching this video.
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Forget Amy Winehouse. The cast of Glee rocks out to "Valerie" in this audio clip from the installment "Special Education."
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Rachel and Kurt team up for "Don't Cry For Me Argentina" on the episode "Special Education." Listen to this incredible duet right here and now.
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Blaine and his pals sing a Train classic in this clip from the episode "Special Education." Hey, Soul Sister, we love it!
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Sectionals are finally upon us, as Kurt takes to the stage with his new group on this episode. Watch the official promo for "Special Education" now.
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Jane Lynch and Carol Burnett team up for this single. It's a version of the single "Ohio" and it's fantastic.
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Glee Quotes

Rachel: This is what I wanted!
Sam: No, what you wanted was a second chance to get it right and Carmen just gave it to you. If you throw all that away you're going to be making the same mistake all over again

Finn: I seem to recall a rumor about a certain cheerleading coach at this school who once took horse estrogen and posed for Penthouse back in the day. So maybe I can just track that down and make a few copies and sell those to raise money for Regionals.
Sue: That's nothing but a rumor. But if that rumor were true, my Penthouse centerfold so groundbreaking that it completely redefined the term 'hirsute,' and gave birth unto these United States a pose so limber they named it the Regal American Not-So-Bald Spread Eagle, I promise you, my friend, you would never find it.