this is a simple and amazing song.
enjoy!

the chords is very simple, I would recoment barèchords:
G - Em - Bm - D


the theme goes like this:
e|--------------------------|
B|--------------------------|
G|----------------------7-9-|
D|-9-9-9-11-12-12-12-12-----|
A|--------------------------|
E|--------------------------|

e|---------------------------|
B|---------------------------|
G|---------------------------|
D|-9-9-9-11-12-12-12-12-11-9-|
A|---------------------------|
E|---------------------------|

e|--------------------------|
B|--------------------------|
G|----------------------7-9-|
D|-9-9-9-11-12-12-12-12-----|
A|--------------------------|
E|--------------------------|

e|---------------------------|
B|---------------------------|
G|-------11-9-9----9----9-11-|
D|-9-9-9--------12---12------|
A|---------------------------|
E|---------------------------|

e|--------------------------|
B|--------------------------|
G|----------------------7-9-|
D|-9-9-9-11-12-12-12-12-----|
A|--------------------------|
E|--------------------------|

e|---------------------------|
B|---------------------------|
G|---------------------------|
D|-9-9-9-11-12-12-12-12-11-9-|
A|---------------------------|
E|---------------------------|

e|---------------------------------------------|
B|---------------------------------------------|
G|---------------------------------------------|
D|-9-9-9/7-9-9-7-7-9-9-7-7-------------------0-|
A|-------------------------9-9-9-9-7-7-7-7-5---|
E|---------------------------------------------|

at last he does this:

e|---------------------------------------------|
B|------------------------17-19----------------|
G|-4-6-7-9-11-14-16-18-19----------------------|
D|------------------------14-16----------------|
A|-2-4-5-7-9--12-14-16-17----------------------|
E|---------------------------------------------|

then he play's around with some chords and stuff.
I'm still trying to figur it out..