Intro: 
|E   |E   |E   |E   |  


Verse: 
         E 
I know a trouble girl in this world 
    A 
She likes to fight every Friday night 
B              A           E 
I ainâ" t scared, I wonâ" t be there 


Verse: 
          E 
Yeah, she fights with the girls  

She fight with the boys 
A 
Every day she jumps for joy 
         B             A            E 
When the Friday is here, I wonâ" t be there 


Chorus: 
             E 
Causeâ"  sheâ" s a knock, knock 

Knock out girl 

Sheâ" s a knock, knock 

Knock out girl 
       A 
Sheâ" s a knock, knock 

Knock out girl 
       E 
Sheâ" s a knock, knock 

Knock out girl 
         B             A        E 
Sheâ" s a knock out girl, in this world 

Come on! Hey! 


Interlude: 
|A   |A   |E   |E   | 
|B   |A   |E   |E   | 

Keep the knock out! 

|E   |E   |E   |E   | 
|A   |A   |E   |E   | 
|B   |A   |E   |E   | 


Verse: 
    E 
She fight with the left  

She fight with the right 
A 
Every night she wins the fight 
         B             A            E 
When the Friday is here, I wonâ" t be there 


Chorus: 
             E 
Causeâ"  sheâ" s a knock, knock 

Knock out girl 

Sheâ" s a knock, knock 

Knock out girl 
A 
 Knock, knock 

Knock out girl 
       E 
Sheâ" s a knock, knock 

Knock out girl 
         B             A        E 
Sheâ" s a knock out girl, in this world 

Letâ" s do the knock out! 


Interlude: 
|A   |A   |E   |E   | 
|B   |A   |E   |E   | 


Chorus: 
             E 
Causeâ"  sheâ" s a knock, knock 

Knock out girl 

Sheâ" s a knock, knock 

Knock out girl 
       A 
Sheâ" s a knock, knock 

Knock out girl 
         E 
Yeah babe, knock, knock 

Knock out girl 
         B             A        E 
Sheâ" s a knock out girl, in this world 


Breakdown: 
            E 
Yeah sheâ" s a knock, knock 

Knock out girl 

Sheâ" s a knock, knock 

Knock out girl 
        
Sheâ" s a knock, knock 

Knock out girl 
        
Sheâ" s a knock, knock 

Knock out girl