This Song is also known as Oh Joanna


Ok, so first off, the chords, very simple and i'm sure you can figure out the rhythm and order

e-------------------|
B-------------------|
G-7----4------------|
D-7----4----5----7--|
A-5----2----5----7--|
E-----------3----5--|


now the very catchy riffs going throughout the song


e-5-3-2-----------5-3-2--------------------3-2---------3-2-|
B-------5-3-2-----------5-3-2----------3-5---------3-5-----|
G-------------4-2-------------4-2--4-2--------4-2----------| X2
D----------------------------------------------------------|
A----------------------------------------------------------|
E----------------------------------------------------------|

e-----------------------------------|
B-------------2-2-2-3-3-3-3-3-3-3-3-|
G-2-2-2-4-4-4-----------------------| X3
D-----------------------------------|
A-----------------------------------|
E-----------------------------------|

e---------------------------------------------------|
B-5-3-2-3-2---2-------------------------------------|
G-----------4---4-2-4-2-0-2-4-2-0-2-2-2-2-2-2-2-2-0-|
D---------------------------------------------------|
A---------------------------------------------------|
E---------------------------------------------------|

Repeat all above 2x
with a slight change on the second time

e-5-5-5-3-3-3-2-2-2-----------------5-5-5-3-3-3-2-2-2-----------------|
B-------------------3-3-3-3-3-3-3-3-------------------3-3-3-5-5-5-5-5-|
G---------------------------------------------------------------------|
D---------------------------------------------------------------------|
A---------------------------------------------------------------------|
E---------------------------------------------------------------------|

e-5-5-5-3-3-3-2-2-2-------------------------------------------------|
B-------------------3-3-3-3-3-3-3-3-5-3-2-3-2---2-------------------|
G---------------------------------------------4---4-2-4-2-0-2-4-2-0-|
D-------------------------------------------------------------------|
A-------------------------------------------------------------------|
E-------------------------------------------------------------------|

e---------------------------------|
B---------------------------------|
G-2-2-2-2-2-2-2-2-0-0-0-0-0-0-0-0-|
D---------------------------------|
A---------------------------------|
E---------------------------------|

Then repeat everything as necessary, there is one more small riff which if you listen 
closely is just a variation of another, here it is:

e---------------|
B-5-3-2-3-2-3-2-|
G-------------2-|
D---------------|
A---------------|
E---------------|

And there you go.