We’ve gotten quite a bit of traffic from folks looking for versions of “Last Christmas” that don’t exist. A version by the Backstreet Boys, for instance. No such thing. The Backstreet Boys have never covered “Last Christmas,” even though there are several files out there misattributed to them. Same thing with U2. And the Beatles (see The Rubber Band, or Wikipedia). As a service to you, dear reader, we’ve begun compiling this list of Artists That Have Not Covered “Last Christmas.”
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Christina Aguilera
Backstreet Boys
The Beatles
Black Sabbath
Mariah Carey
The Futureheads
George Thorogood & the Destroyers
The Glenn Miller Orchestra
*NSYNC
Prince
R.E.M.
Soundgarden
Britney Spears
U2
Weezer
If you discover (and verify the authenticity of) a version by any of these artists, please send it to us. We will at once remove their name from this list, and add their version to our archive.
American Idol winner and country music sensation Carrie Underwood performed this version on Christmas in Washington last year.
Carrie Underwood – Last Christmas (Live)
And just in case you don’t believe me…
Dec 16, 12:02 PM · 
Poor little Carrie Underwood trying to sing behind that horrid karaoke track. That is pretty bad.
I saw the Orange County Ska Band The Aquabats do a version once at a show. It was so funny I spit beer on the person standing in front of me I was laughing so hard. Theirs would a fantastic addition to your unique collection.