I was looking at the other tabs for this song and someone put the intro riff thing in 
key of C? It's supposed to be in A, so i transcribed it and decided to put it here

This is played throughout the song
E|-----------------------|
B|-----------5-----------|
G|--2--4--2-----6--4--2--|
D|-----------------------|
A|-----------------------|
E|-----------------------|

The chords go

Chorus:

ADon't (x02220@1)worry, about a thing

       D (xx0232@1)                            ACause' (x02220@1)every little thing, gonna be alright

       (A)
Singin' don't worry, about a thing

       D (xx0232@1)                            ACause' (x02220@1)every little thing, gonna be alright


Verse:

ARise (x02220@1)up this mornin'

               ESmile (022100@1)with the rising sun

             D (xx0232@1)               Athree (x02220@1)little birds pirch by my doorstep

       (A)
Singin' sweet songs

           Eof (022100@1)melodys pure and true

       D (xx0232@1)                 Asayin', (x02220@1)this my message to you-oo-oo
-----------------------------------------
Just repeat these chords for the rest of the verse and choruses