Jamie Cullum's Christmas song is a very good modernist jazz style Christmas song. Do you want a broad appeal to increase your listenership? Or what about a jazzy Michael Buble number? Me and my wife both think he is awfully good. I like Ska music a lot, there are some very good Ska christmas songs.
But surely that is the point of being a radio presenter at Christmas. I don't mean the cheesey ones but some really good Jazz style ones like Jamie Cullum's latest effort would surely hit the mark