Hi, I learnt this by ear. It's a really cool bass line and I hope you like playing 
it as much as I do :)

Intro - *bhom bhom bhom* "I see a mansard roof through the trees" 

G|----------------------------------------------------------------|
D|-----------------545------3-------------------------------------|
A|----------------------------5--3--------------------------------|
E|111----1-1111--------3-333----3-111111111111111111111111--------|

Verse

G|----------------------------------------------------------------|
D|----------------------------------------3333--------------------|
A|------------------------55445555------------5555----3333--------|
E|111111111111111111111111--------33333333--------3333----11111111|

Chorus

G|----------------------------------------------------------------|
D|3-2-----3-2-----5-3-----7-7-8-----------------------------------|
A|----5-3-----5-3-----7-5--7--------------------------------------|x2
E|----------------------------------------------------------------|

Verse

Chorus


The bass line's simple yet effective. You can follow me on Twitter: 
@TattyBojangles7 or Marla Kether :D