"Joy to the World" is an English Christmas carol, written in 1719 by the English minister and hymnwriter Isaac Watts.
Since the 20th century, "Joy to the World" has been the most-published Christmas hymn in North America. --From Wiki
Joy to the world! The Lord is come
Let ( )receive her King !
Let every heart ( ) Him room
And heaven and nature sing
And heaven and nature sing
And heaven, and heaven and nature sing