Get ready for a third Phineas and Ferb Christmas, and this time it's not the original special that's gonna be the highlight. Instead, a new special episode, "Phineas and Ferb's Family Christmas Special", is set to air December 2nd on Disney Channel. Here's an article for a source. It looks as though Kelly Clarkson is set for a guest appearance as herself in the episode and the songs include three classic Christmas carols straight from the Phineas and Ferb Holiday Favorites soundtrack, "Let it Snow", performed by Isabella, "Good King Wenceslas", performed by Baljeet and Buford (although it's pretty much as good as Buford's version of the song, not at all like the original, which may explain how he ended up on Santa's naughty list), and of course "We Wish You A Merry Christmas", performed by the cast of Phineas and Ferb (again, some altered lyrics, Phineas and Ferb style). Hmm... who knew? I'm sure fans have been dying to see Isabella's cover of "Let it Snow" animated since last year, but chances are, it's not gonna be what we think. And even if it is, it'll probably be nothing more than a figment. Pfft.