This is so funny guys, watch all these animals singing "Deck the Halls", one of my favourite Christmas carols.

Deck the halls 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,
Fa la la la la, la la la la.

See the blazing Yule before us,
Fa la la la la, la la la la.
Strike the harp and join the chorus.
Fa la la la la, la la la la.

Follow me in merry measure,
Fa la la la la, la la la...
Come on
What?
You have to sing your part
Aaaah, ok.... la!
While I tell of Yule tide treasure,
Fa la la la la, la la la la.

Fast away the old year passes,
Fa la la la la, la la la la.
Hail the new, ye lads and lasses,
Fa la la la la,
(Oh, I forgot the words)

Sing we joyous, all together,
Fa la la la la, la la la la.
Heedless of the wind and weather,
Fa la la la la, la la la la.
Fa la la la la, la la la la.

DECK= (old fashioned) Decorate.

HALLS= (old fashioned) Rooms.

BOUGHS= Branches.

HOLLY= A bush used in Christmas for decoration (see picture)

TIS= (old fashioned) It is, It's.

JOLLY= (old fashioned) Happy.

DON= (old fashioned) Put on (clothes).

GAY= (old fashioned) Happy (he he, gotcha!).

APPAREL= (old fashioned) Clothes.

TROLL= Sing with enthusiasm.

ANCIENT= Very old.

YULETIDE= (old fashioned) Christmas.

CAROL= A popular Christmas song. (sorry, this word is not old fashioned, still used a lot :)

BLAZING= Burning.

YULE= A big log that was put in the chimney on Christmas Day.

STRIKE= To play a string instrument (harp, guitar, etc.)

MERRY= (old fashioned) Happy.

MEASURE= Extent, degree. "In merry measure" = happily, in a happy way.

HAIL= (old fashioned) Welcome; greet.

YE= (old fashioned) You (plural).

LADS= (old fashioned or dialectal in Britain) Boys.

LASSES= (old fashioned or dialectal in Britain) Girls.

JOYOUS= (old fashioned) Happy.

HEEDLESS= Thoughtless.

Ye ende of ye lessone (he he, old fashioned). Well, I hope you enjoyed this old fashioned Yuletide carol full of old fashioned words. But the song is not old fashioned, it's very old (16th century), but always in fashion. Love it :)
Mike