Stephen Colbert's very special Christmas Special, the one for which Fountains Of Wayne's Adam Schlesinger is writing all the songs, just got a little more Special. The CC Insider (via Videogum) reports that Adam's tunes will be performed by singers of bloggable (see: Elvis Costello, Feist), excitable (see: John Legend), and jingoistic (Toby Keith) varieties. (Yes, Toby Keith, the Obama ...