O Christmas tree, O Christmas tree, thy leaves are so unchanging. O Christmas tree, O Christmas tree, thy leaves are so unchanging. Not only green when summer's here, but also when 'tis cold and drear. O Christmas tree, O Christmas tree, thy leaves are so unchanging. O Christmas tree, O Christmas tree, you fill all hearts with gaiety. O Christmas tree, O Christmas tree , you fill all hearts with gaiety. On Christmas Day you stand so tall, affording joy to one and all. O Christmas tree, O Christmas tree, you fill all hearts with gaiety.