This is the acoustic version that he played during his Songbook tours. 
Listen for the chord changes, it's very easy to pick up. Watch a songbook video if it'll help. 


---- Intro 

E  C  E  C  E  C  E  C  

---- verse 1 + 2 

E  C  E  C  E  E7 D    C  Gadd11 

F#   B G 

C    Am7    F#   B A   F# 
---- 
E  C  E  C  E  E7 D    C  Gadd11 

F#   B G 

C    Am7    F#   A 

---- Chorus 

A  C  B  G  C#m  A 

A  C  F# 

E  C 

E  C 

E  C  E  D 

---- verse 2 

E  C  E  C  E  E7 D    C  Gadd11 

F#   B G 

C    Am7    F#   A 

---- Chorus 

A  C  B  G  C#m  A 

A  C  F# 

E  C 

E  C 

E  C  E  D 

---- Solo 

E  C  E  C  E  C  E  C 

E  C  E  C  E  C  E  C 

---- Bridge 

A  C  A  D 

A  C  A  D 

A  D  A  E  C 

A  D  A  E  C 

A  D  A  E  C 

A  D  A  E  C 

E  C 

E  C 

---- Outro 

E  C  E  C  E  C  E  C........ 

========================== 

A - x0222x, x02220, 577655 
Am7 - x02010 
B - x2444x 
C - x32010 
C#m - x46654 
D - xx0232 
E - 022100 
F# - 244322 
G - 355433 
Gadd11 - 32x010