[Intro: CeeLo Green]
Oh-hoh-hoh-hoah
Oh-hoh-hoh-hoah

[Chorus: CeeLo Green & Jack Black]
Everybody is kung fu fightin' (Hoo! Huh!)
Your mind becomes fast as lightning
Although the future is a little bit frightenin' (Little bit frightenin')
It's the book of your life that you're writing (Life that you're writing)

[Verse 1: CeeLo Green & Jack Black]
You're a diamond in the rough
A brilliant ball of clay
You could be a work of art (Ha!)
If you just go all the way (Look out!)
Now what would it take to break? (Chee!)
I believe that you can bend
Not only do you have to fight (Hoo!)
But you have got to win

[Chorus: CeeLo Green & Jack Black, Both]
Everybody is kung fu fightin' (Hoo! Huh!)
Your mind becomes fast as lightning
Although the future is a little bit frightenin' (Little bit frightenin')
It's the book of your life that you're writing (Life that you're writing)
[Verse 2: CeeLo Green]
You are a natural (Ooo)
Why is it so hard to see? (Yeah)
Maybe it's just because (Ooo)
You keep on lookin' at me (Huh!)
The journey's a lonely one (Ooo)
So much more than we know (Yeah)
But sometimes you've got to go (Ooo)
Go on and be your own hero

[Chorus: CeeLo Green & Jack Black, Both]
Everybody is kung fu fightin' (Kung fu fightin')
Your mind becomes fast as lightning (Hoo! Hah!)
Although the future is a little bit frightenin' (Little bit frightenin')
It's the book of your life that you're writing (Life that you're writing)

[Verse 3: CeeLo Green]
You're a diamond in the rough (Ooo)
A brilliant ball of clay (Yeah)
You could be a work of art (Oh!)
If you just go all the way (Yeah)
Now what would it take to break (Ooo)
I believe that you can bend (Yeah)
Not only do you have to fight (Ooo)
But you have got to win
[Chorus: CeeLo Green & Jack Black, Both]
'Cause everybody is kung fu fightin' (Kung fu fightin')
Your mind becomes fast as lightning (Yeah, yeah)
Although the future is a little bit frightenin' (Little bit frightenin')
It's the book of your life that you're writing