Deck the Halls
"Deck the Halls" is based on a Welsh folktune at least as old as the 16th-century used with the winter carol "Nos Galan." However, the Scottish musician Thomas Oliphant composed English words to it in 1862 which made the carol very popular. It recounts secular traditions of the season in antiquated language: decking (decorating) the halls, donning (putting on) gay apparel (clothes), and trolling (singing) ancient yuletide (old Christmas) carols. But the fa, la, la repeats make this a fun song to sing, especially/even to today's children!
Deck the hall with boughs of holly,
Fa, la, la, la, la, la, la, la, la!
'Tis the season to be jolly:
Fa, la, la, la, la, la, la, la, la!
Don we now our gay apparel,
Fa, la, la, la, la, la, la la la!
Troll the ancient yuletide carol.