I've learned this song by music learner, so this have to be 100% correct.

Standar tuning.

~ - let ring
* - let ring shortly

INTRO:

G|------------------------------------|
D|------------------------------------|
A|-5-55-555---------------------------|
E|----------5-55-555-3-33-333-3-33-333| x2

VERS:

G|----------------------|
D|----------------------|
A|-5~-------------------|
E|--------5~-----3~-----| x4

Before chorus, you can if you want strum up and down very fast on the 3rd fret E-string, 
like a little pre-chorus.

CHORUS:

G|------------------------------------|
D|------------------------------------|
A|-5-55-555---------------------------|
E|----------5-55-555-3-33-333-3-33-333|

G|------------------------------------|
D|------------------------------------|
A|-5-55-555---------------------------|
E|----------5-55-555-3-33-333-3-33-333|

G|------------------------------------|
D|------------------------------------|
A|-5-55-555---------------------------|
E|----------5-55-555-3-33-333-3-33-333|

G|--------------------|
D|--------------------|
A|-111111111-33333333-|
E|--------------------|

Then after this you go back to the intro and play it all the way back to the chorus, 
then you go onto the bridge.

BRIDGE:

G|----------------------------------------------------------------|
D|----------------------------------------------------------------|
A|-------------------33333333-55555555-11111111-------------------|
E|-33333355-66666666----------------------------11111111-33333333-|

G|-------------------------------------------------------------------------|
D|-------------------------------------------------------------------------|
A|-11111111-33333333-55555555-11111111-------------------11111111-33333333-|
E|-------------------------------------11111111-33333333-------------------|

Then you go over to the chorus, and play it twise this time, then go back to the outro.

OUTRO:

G|----------------------------------------------------------|
D|----------------------------------------------------------|
A|-------------------33333333-------------------33333333-5~-|
E|-33333355-66666666----------33333355-66666666-------------|

G|----------|
D|----------|
A|-5*-------|
E|----3*-5~-|