Do You want My Blood

Do you want my blood, do you want my tears
What do you want
What do you want from me
Should I sing until I can't sing any more
Play these strings until my fingers are raw
You're so hard to please
What do you want from me

Do you think that I know something you don't know
What do you want from me
If I don't promise you the answers would you go
What do you want from me

Pink Floyd