This is played in Drop D.
I recommend you listen to this song while playing this.
This is my first tab. :D
Verse
G|----------------------------------------------------|
D|----------------------------------------------------|
A|----------------------------------------------------|
E|-3---0--6-7-0-3---0--6-7-0-3-2-3-0--0-6-7-0-3-5-3-0-|
Bridge
G|-----------------|
D|-----------------|
A|-5-5-5-5-5-5-5-5-|
E|-----------------|
Outro
G|-----------------|
D|-----------------|
A|-----------------|
E|-0----3----3-5---|
It's best to listen to the song and play along to it. :D