Bit of a correction of the other tab for this song really...
The inro and start of the song are these chords:
Dm, A#, A (all barred as shown below)
e|-5----5----5----5----5--x--6----6----6----6----6-----5----5----5----5----5|
B|-6----6----6----6----6--x--6----6----6----6----6-----5----5----5----5----5|
G|-7----7----7----7----7--x--7----7----7----7----7-----6----6----6----6----6|
D|-7----7----7----7----7--x--8----8----8----8----8-----7----7----7----7----7|
A|-5----5----5----5----5--x--8----8----8----8----8-----7----7----7----7----7|
E|-5----5----5----5----5--x--6----6----6----6----6-----5----5----5----5----5|
then at 0.48 Carl picks/strums G F A# A (x2) like so:
G F A# A G F
A
e|-3----4----6----5----3----4----6----5---|
B|-3----4----6----5----3----4----6----5---|
G|-4----2----7----6----4----2----7----6---|
D|-5----3----8----7----5----3----8----7---|
A|-5----3----8----7----5----3----8----7---|
E|-3----1----6----5----3----1----6----5---|
Carl fingers a couple of strange looking chords for the 'I want you, I need you' bit.
something like a D5 and a G5 at teh 10th fret, like this:
'I want you' 'I need you'
e|--------------------------------------------------------------------------|
B|--------------------------------------------------------------------------|
G|-------7------7------7------7------12-----12-----12-----12----------------|
D|-------7------7------7------7------12-----12-----12-----12----------------|
A|-------5------5------5------5------10-----10-----10-----10----------------|
E|--------------------------------------------------------------------------|
^^^ ^^^
Those chords aren't right though but they sound close.
After that you start from the Dm, A#, A again.
The lead parts are major pentatonics-ish like the other guy said but I haven't worked
out exactly.
Hope this helps somebody :)