This song is fairly easy, just follow the song and you'll get it in no time.. 
D tuning

verse
G|-----------------------------------------------|
D|-----------------------------------------------|
A|-----------------------1-3-5---6---5---4---3---|
D|-------5---4---3-------------------------------|

Pre-chorus
G|-----------------------|
D|-----------------------|
A|-----6---5---6---8-----|
D|-----------------------|

chorus
G|---------------------------------------------|
D|---------------------------------------------|
A|---------------2---3-----------------2---3---|
D|------5---7-----------------5---7------------|

bridge
G|----------------------------------------------------------------------|
D|----------------------------------------------------------------------|
A|-----------5-4-5-----------------------------------5-4-5--------------|
D|------0-------------5---7---8---7---8/0-----0-------------5---7---8---|

2nd chorus
G|---------------------------------------------------------------------------------------------|
D|---------------------------------------------------------------------------------------------|
A|---------------2---3-----------------2---3-----------------2---3-----------------2---3----0--|
D|------5---7-----------------5---7-----------------5---7-----------------5---7----------------|

outro
G|-----------------------|
D|-----------------------|
A|-----------------------|
D|-----5---4---3---2-----|


verse
pre-chorus
chorus
bridge
verse X2
pre-chorus
2nd chorus
bridge X2
2nd chorus
outro