Other than Phoenix, Jenny Lewis is the only musician who makes an appearance in the Christmas special. Lewis has an acting past, and plays a waitress who suddenly finds herself in a flirty, albeit a little creepy, version of “Baby, It’s Cold Outside” with Murray. Perhaps, that's what led to those Page Six rumors? Anyways, Lewis sounds wonderful and the back and forth between the two, which has Murray making up some his own lyrics. So at least that's something different.