I don´t think that this is a hard tab to play. But the other versions I´ve found were 
far to complex for this song. I think it sounds very good this way.
Transposed a half step down, for playing along the recording use a capo an 1st fret.

Sunshine (2008) - Expect The Impossible (Stellar Kart)
--Song-- (--Year--) - --Album -- (--Artist--)

Enjoy!

G                   C
Life is filled with circumstances situations
G                  C
That we can't avoid
G                 C
And I admit some days can steal my happiness
G                D
but I still got joy

G   C
Hey you are my sunshine
G              C
On a rainy day it's gonna be ok
G   C
Hey you are my sunshine
G                 C
It's gonna be alright

G            C
I believe in something bigger than my troubles
G                    C
They can't keep me down
G                           C
This sinking feeling starts disappearing on the double
G                  D
Now that you're around

G   C
Hey you are my sunshine
G              C
On a rainy day it's gonna be ok
G   C
Hey you are my sunshine
G                 C
It's gonna be alright

G            C
I am not afraid to walk into the darkness
G                   C
Cause I've got the light
G                    C
I've got my problems but I know that Jesus loves me
G             D
And that's alright

G   C
Hey you are my sunshine
G              C
On a rainy day it's gonna be ok
G   C
Hey you are my sunshine
G                 C
It's gonna be alright