EDIT 10/25/11: Fixed the Vocals. They sound very different, but they are much clearer.
Lyrics:

(Verse)
I know all your weaknesses,
I live within your soul
Your inner demon, I am he
That strives to take control,

I know that you can hear me,
Laughing at your pain,
I live to make you miserable,
How long can you stay sane?

The living darkness in your veins
I make you long for death
Your heart weighs down on both your feet
There's pain with every breath

Your body's yours to use for now,
But I've got time to spare.
I'll kill you joys with my own hands
And soon you'll taste despair.

(Chorus x2)
Hate me hate me can't escape me
Fill your ears with lies
Stab your brain with crystal shards
And blood flows from your eyes

(Verse 2)
You never should have stood your ground
It's all your fault, you know.
I'm grasping you with all my might
I might have let you go.

But now I'm trapped inside you
So let the evil reign
The razor blade that is myself
Will slit you once again.

You've finally regained yourself
And push me back once more
Look what I did while you were gone
See the blood that's on the floor?

Your friend is very close to death
And who do you think's to blame?
The mirror says it very well
I've won our little game.

(Chorus x2)
Stab your brain with crystal shards
and blood flows from your eyes.

Composed and performed by Mike Sytera. Theme of Melody, Emoglacion of Deviantart's character.