Everybody knows the tune, but nobody knows the words. Will Smith even joked about it. No need to hum the words now.

Should auld acquaintance be forgot,
And never brought to mind?
Should auld acquaintance be forgot,
And auld lang syne.

Chorus:

For auld lang syne, my jo,
For auld lang syne,
We’ll tak a cup o’ kindness yet,
For auld lang syne,

And surely ye’ll be your pint-stowp!
And surely I’ll be mine!
And we’ll tak a cup o’ kindness yet,
For auld lang syne.

Chorus

We twa hae run about the braes
And pu’d the gowans fine;
But we’ve wander’d mony a weary foot
Sin auld lang syne.

Chorus

We twa hae paidl’d i’ the burn,
Frae mornin’ sun till dine;
But seas between us braid hae roar’d
Sin auld lang syne.

Chorus

And there’s a hand, my trusty fiere!
And gie’s a hand o’ thine!
And we’ll tak a right guid willy waught,
For auld lang syne.

Chorus

Should old acquaintance be forgot,
And never brought to mind?
Should old acquaintance be forgot,
And long, long ago.

Chorus

And for long, long ago, my dear
For long, long ago,
We’ll take a cup of kindness yet,
For long, long ago.

Chorus

And surely you’ll buy your pint-jug!
And surely I’ll buy mine!
And we’ll take a cup of kindness yet,
For long, long ago.

Chorus

We two have run about the hills
And pulled the daisies fine;
But we’ve wandered manys the weary foot
Since long, long ago.

Chorus

We two have paddled in the stream,
From morning sun till dine;
But seas between us broad have roared
Since long, long ago.

Chorus

And there’s a hand, my trusty friend!
And give us a hand of yours!
And we’ll take a deep draught of good-will
For long, long ago.

Chorus

From “The History and Words of Auld Lang Syne” on Scotland.org