A first for you. There was An Evening With Tim Burton event last night at which some clips from Sweeney were shown (excellent reviews ) and a member of the audience recorded one of the songs 'Johanna'. Here for your delectation is JD singing. (You hear the voice of Anthony first)
youtube link - audio only
http://www.youtube.com/watch?v=E_Bg7Oj_Kzc

If you want to be able to distinguish who is singing (in other words when Johnny sings ) here are the lyrics.

ANTHONY
I feel you, Johanna,
I feel you.
Do they think that walls can hide you?
Even now I'm at your window.
I am in the dark beside you,
Buried sweetly in your yellow hair,
Johanna...

TODD:
And are you beautiful and pale,
With yellow hair, like her?
I'd want you beautiful and pale,
The way I've dreamed you were,
Johanna...

ANTHONY:
Johanna...

TODD:
And if you're beautiful, what then,
With yellow hair, like wheat?
I think we shall not meet again —
My little dove, my sweet
Johanna. ..

ANTHONY:
I'll steal you,
Johanna. ..

TODD:
Goodbye, Johanna.
You're gone, and yet you're mine.
I'm fine, Johanna,
I'm fine!

ANTHONY:
Johanna...

BEGGAR WOMAN (In a rage, loudly, sings):
Smoke! Smoke!
Sign of the devil! Sign of the devil!
City on fire!
Witch! Witch!
Smell it, sir! An evil smell!
Every night at the vespers bell —
Smoke that comes from the mouth of hell —
City on fire!
City on fire ...
Mischief! Mischief!
Mischief...

TODD:
And if I never hear your voice,
My turtledove, my dear,
I still have reason to rejoice:
The way ahead is clear,
Johanna...

ANTHONY:
I feel you ...

TODD:
And in that darkness when I'm blind
With what I can't forget —

ANTHONY:
Johanna...

TODD:
It's always morning in my mind,
My little lamb, my pet,
JOHANNA...

TODD: ANTHONY:
You stay, Johanna — Johanna ...

TODD:
The way I've dreamed you are.
Oh look, Johanna —
A star!

ANTHONY:
Buried sweetly in your yellow hair . . .

TODD (Tossing the customer's hat down the chute):
A shooting star!

BEGGAR WOMAN (Pointing):
There! There!
Somebody, somebody look up there!
Didn't I tell you? Smell that air!
City on fire!
Quick, sir! Run and tell!
Warn 'em all of the witch's spell!
There it is, there it is, the unholy smell!
Tell it to the BEADLE and the police as well!
Tell 'em! Tell 'em!
Help!!! Fiend!!!
City on fire!!!
City on fire . . .
Mischief. .. Mischief.. . Mischief...
Fiend . . .
Alms .. . alms ...

TODD (Shaving the customer):
And though I'll think of you, I guess,
Until the day I die,
I think I miss you less and less
As every day goes by,
Johanna...

ANTHONY:
Johanna...

TODD (Sadly):
And you'd be beautiful and pale,
And look too much like her.
If only angels could prevail,
We'd be the way we were,
Johanna...

ANTHONY:
I feel you . . .
Johanna...

TODD (Cheerfully, looking up at the sky):
Wake up, Johanna!
Another bright red day!
We learn, Johanna,
To say
Goodbye..

ANTHONY (Disappearing into the distance):
I’ll steal you, Johanna!


btw, the laughter is from the audience, nervous laughter at all the blood and slashing I believe.

p.s. for those who don't know Johanna is Todd's daughter.