As a proud descendent of the Czechs, I must pay homage to Good King Wenceslas with his Christmas tune. Here it is by the Irish Rovers:
Note that the good king practices Christian charity on the feast of Saint Stephen. The feast of Stephen is on December 26 in the West but on December 27 in the East. I have no idea why the date differs. So, for you new calendarists, happy feast of Saint Stephen, either yesterday or today!