This is a very simple way to play the song that dont sound too bad.

Only play 3 strings at once.

you can pretty much just play with this same finger pattern and figure it out.

Intro & choruses
 |-------------------------------------------|
 |-7-7-------------------7-7-----------------|
 |-7-7-------------------7-7-----------------|
 |-5-5-7-7-7-9-9-9-7-9-7-5-5-7-7-9-9-9-9-9-9-|
 |-----7-7-7-9-9-9-7-9-7-----7-7-9-9-9-9-9-9-|
 |-----5-5-5-7-7-7-5-7-5-----5-5-7-7-7-7-7-7-|
________________________________________________

 |-----------------------------------------------|
 |-7-7-------------------7-7---------------------|
 |-7-7-------------------7-7---------------------|
 |-5-5-7-7-7-9-9-9-7-9-7-5-5-7-7-8-8-8-8-8-8-8-8-|
 |-----7-7-7-9-9-9-7-9-7-----7-7-8-8-8-8-8-8-8-8-|
 |-----5-5-5-7-7-7-5-7-5-----5-5-6-6-6-6-6-6-6-6-|

Verses:
 |---------------------------|
 |-7-7-7-7-7-----------------|
 |-7-7-7-7-7-----------------|
 |-5-5-5-5-5-7-5-5-5-5-7-7-7-|
 |-----------7-5-5-5-5-7-7-7-| 
 |-----------5-3-3-3-3-5-5-5-| 
 repeat this a few times and then back to chorus/intro.