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 ain’t scared, I won’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 won’t be there 
 
Chorus
              E 
Cause’ she’s a knock, knock, knock out girl 
 
She’s a knock, knock, knock out girl 
       A 
She’s a knock, knock, knock out girl 
       E 
She’s a knock, knock, knock out girl 
         B             A        E 
She’s a knock out girl, in this world 
 
Come on! Hey! 
 
Instrumental
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 won’t be there 
 
Chorus
              E 
 Cause’ she’s a knock, knock, knock out girl 
 
 She’s a knock, knock, knock out girl 
A 
 Knock, knock, knock out girl 
        E 
 She’s a knock, knock, knock out girl 
          B             A        E 
 She’s a knock out girl, in this world 
 
 Let’s do the knock out! 
 
Instrumental
A   A   E   E 
B   A   E   E 
 
Chorus
              E 
Cause’ she’s a knock, knock, knock out girl 
 
She’s a knock, knock, knock out girl 
       A 
She’s a knock, knock, knock out girl 
         E 
Yeah babe, knock, knock, knock out girl 
         B             A        E 
She’s a knock out girl, in this world 
 
Outro
            E 
Yeah she’s a knock, knock, knock out girl 
 
She’s a knock, knock, knock out girl 
 
She’s a knock, knock, knock out girl 
 
She’s a knock, knock, knock out girl