The song Knock Yourself Out is performed by Toby Keith in the album named Honkytonk University in the year 2005 .
If you wanna go back to him, baby, get up and go
I'm tired of being a clown caught up in your sideshow
Night after night, it never ends
It's like a heavyweight fight, nobody wins
And I'm throwin' in the towel
Enough is enough
Knock yourself out, break me in two
You gotta go do what you gotta do
I gave you my best shot, but you didn't fall
Head over heels in love after all
And I don't wanna hear no more, baby, there's the door
There's nothin' left to fight about, knock yourself out
Oh, let's not pull any punches while we're
Standin' here toe to toe
If you're gonna leave me here
Baby go on, go
Knock yourself out, break me in two
You gotta go do what you gotta do
I gave you my best shot, but you didn't fall
Head over heels in love after all
And I don't wanna hear no more, baby, there's the door
There's nothin' left to fight about, knock yourself out
Oh, knock yourself out
If you wanna go back to him
Baby, get up and go