Who sings the song "You've got me begging you for mercy"

Mercy by Duffy :)

Yeah Yeah Yeah x4

I love you
But I got to stay true
My morals got me on my knees
I'm begging please stop playing games

I don't know what this is
Cos you got me good
Just like you knew you would

I don't know what you do
But you do it well
I'm under your spell

Chorus
You got me begging you for mercy
Why won't you relase me
You got me begging you for mercy
Why won't you release me
I said release me

Now you think that I
Will be something on the side
But you got to understand
That I need a man
Who can take my hand yes I do

I don't know what this is
But you got me good
Just like you knew you would

I don't know what you do
But you do it well
I'm under your spell

You got me begging you for mercy
Why won't you release me
You got me begging you for mercy
Why won't you release me
I said you'd better release yeah yeah yeah

I'm begging you for mercy
Yes why won't you realse me
I'm begging you for mercy

You got me begging
You got me begging
You got me begging

Mercy, why won't you realise me
I'm begging you for mercy
Why won't you release me

You got me begging you for mercy
I'm begging you for mercy
I'm begging you for mercy
I'm begging you for mercy
I'm begging you for mercy

Why won't you release me yeah yeah
Break it down

(Fade)