Guess this song....?

Question

Have you ever loved someone so much, you'd give an arm for?
Not the expression, No ... literally give an arm for?
When they know they're your heart and you know your are their armor
And you will destroy anyone who would try and harm her
But what happens when karma, turns right around and bites you?
And everything you stand for turns on you to spite you
What happens when you become the main source of a pain
Daddy look what I made, Dad's gotta go catch a plane
Daddy where's mummy? I can't find mummy where is she?
I don't know go play hailie baby, ya daddy's busy
Daddy's writing this song, this song ain't gonna write itself
I'll give one underdog, then you gotta swing by yourself
Then turn right around on that song and tell her you love her
Then put hands of her mother who's a splitting image of her
That's Slim Shady, Yeh baby Slim Shady's crazy
Shady made me, but tonight shady's rock-a-by baby

A verse on a song now guess what it is

Answer 1

the song is called "When I'm Gone" by Eminem