Yes, you're right - I missed this yesterday. Blame the traditional heavy Christmas night out. The thoroughly unplanned 'somehow find yourself singing (very badly) on the stage of The Cavern' night out. Which is currently being paid for with an equally unplanned fragility.
So. Two today then. And the first one up was the world's first example of a rap Xmas tune - Run DMC 'Christmas In Hollis'