(optional) Intro/verse riff/chord*:
    Am        Am/C    
e | ---------------0--0-0-0-0-- | 
B | ---------------1--1-1-1-1-- | 
G | --2---2-2-2-2--2--2-2-2-2-- | 
D | --2---2-2-2-2--2--2-2-2-2-- | 
A | --0---0-0-0-3--3--3-3-3-3-- | 
E | --x---x-x-x-x--x--x-x-x-x-- | 

-Just listen to the song to figure out the strumming rhythm of this part.
*This makes playing the Am chord repeatedly through all the verses sound
 like it almost still has the bass riff from the original song under it, which goes like this:

e | --------------------- | 
B | --------------------- | 
G | --------------------- | 
D | -------2/7-0-7-0-7--- | 
A | -0--3---------------- | 
E | --------------------- | 
 
Anyway,

Verse:
Am
 Father says it, mother says it
Am
 Sister says it, brother says it
Am
 Uncle says it, Auntie says it
Am
 Everyone at the party says it
             G
Babe, I'm on fire
            Am
Babe, I'm on fire


Chorus:
G                    F
Hit me up, baby, and knock me down
G                          F
Drop what you're doing and come around
G                          F
We can hold hands till the sun goes down
        F
Cause I know
G    F
That you
G   F
And I
G   F
Can be
G F ~~~ (pause)
Together
                 Am
Cause I...love...You

And go back to playing the verse [Am] (with the Am/C or otherwise)