How to read tablature? 
Intro - x2, as Jason Mraz plays it -:
xEb----12--12--12-5-12-------|
xBb--5-----------------------|
xAb--------------------------|
xDb-------6---6--------7-----|


Eb             Cm
Why are there so many
Ab           Bb7
Songs about rainbows
Eb                 Cm   Ab    Bb7
And what's on the other side
Eb             Cm
Rainbow's are visions
Ab        Bb7
But only illusions
Eb                 Cm        Ab    Bb7
And rainbows have nothing to hide
Ab    
What's so amazing is that it keeps us star gazing
Gm7
What do they we think we might see?
Fm            Bb7
Someday we'll find it
Eb           Cm
The Rainbow Connection


Fm              Bb7           Eb             Bb7  


Bb7
The lovers, the dreamers and me
Eb             Cm
Have you been half asleep?
Ab                      Bb7
And have you heard the voices
Eb                    Cm        Ab    Bb7
Well I've heard them calling my name
Eb           Cm              Ab               Bb7
Is this the sweet sound that calls the young sailors?
Eb                  Cm         Ab    Bb7
The voice might be one and the same
Ab    
I've heard it too many many times to ignore it
Gm7
Ooooohh and that I think it could be


Fm                 Bb7
Well someday we'll find it
Eb           Cm
The Rainbow Connection
Fm             Bb7           Eb
The lovers the dreamers and me
Fm            Bb7
Someday we'll find it
Eb         Cm
a Rainbow Connection
Fm                  Bb7            Eb
The lovers, oh, the dreamers, and me