So, Auld Lang Syne was like the staple song for New Year’s Eve. If you do not know the auld lang syne lyrics, here they are, copied from Wiki.

Should old acquaintance be forgot,
and never brought to mind ?
Should old acquaintance be forgot,
and old times since ?

CHORUS:
For auld lang syne, my dear,
for auld lang syne,
we’ll take a cup of kindness yet,
for auld lang syne.

And surely you’ll buy your pint cup !
And surely I’ll buy mine !
And we’ll take a cup o’ kindness yet,
for auld lang syne.

CHORUS

We two have run about the slopes,
and picked the daisies fine ;
But we’ve wandered many a weary foot,
since auld lang syne.

CHORUS

We two have paddled in the stream,
from morning sun till dine† ;
But seas between us broad have roared
since auld lang syne.

CHORUS

And there’s a hand my trusty friend !
And give us a hand o’ thine !
And we’ll take a right good-will draught,
for auld lang syne.

CHORUS

I personally prefer this Same Old Lang Syne by the late Dan Fogelberg