[Intro: CeeLo Green]
Oh-oh-woah
Oh-oh-woah

[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 (Ooh), why is it so hard to see? (Yeah)
Maybe it's just because (Ooh) you keep on lookin' at me (Huh!)
The journey's a lonely one (Ooh), so much more than we know (Yeah)
But sometimes you've got to go (Ooh), 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)

[Bridge: CeeLo Green]
You're a diamond in the rough (Ooh), 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, (Ooh) I believe that you can bend (Yeah)
Not only do you have to fight (Ooh), 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