As well as the usual disclaimer, I must note that the form of this song is based on "Wrapped Around Your Finger," by The Police.

"Wrapped Around My Finger" – sung by Frodo at Orodruin

You consider me a foolish mortal
Ruled by baser passions, never thoughtful
Caught by your dread nazgûl if I linger
Or if I put your ring upon my finger

I am sent to seek for its destruction
They have sent me off in desperation
Middle-earth's own fate is what I hold
Wrapped up in this shining band of gold

Ill luck wrapped around my finger
Ill luck wrapped around my finger

Necromancer, Sauron – any name,
You're to be avoided just the same
Only duty could induce me to it
Not from danger run, rather pursue it

Ill luck wrapped around my finger
Ill luck wrapped around my finger

Cirith Ungol is now far behind me
In your smoky air you'll never find me
At the point of caving to my wishes
Gollum will attack me for the precious

And he'll be lost with my ring finger
He'll be lost with my ring finger
He'll be lost with my ring finger