This is in standard tuning, but if you want it to be a little easier, play in Dropped D, 
change all '5's on the E string to '7's, etc. This way it is easier to play the chorus.

Verse:
G|-----------------------------------------------------------|
D|-----------------------------------------------------------|
A|-----------------------------------------------------------|
E|5-5555-5555-555-5-5-5-5-5555-5555-555-5-5-5-5-1-1111-1111--|

G|----------------------------------------------------------|
D|----------------------------------------------------------|
A|----------5-5555-5555-555-5-5-5-5-------------------------|
E|111-1-1-1-------------------------------------------------|

Pre-Chorus:
G|----------------------------------------------------------|
D|----------------------------------------------------------|
A|5-5-5-5-5-5-5-5-------------------------------------------|
E|----------------------------------------------------------|

Chorus:
G|----------------------------------------------------------|
D|---------------5-3----------------------------------------|
A|-------------------5-3------------------------------------|
E|5555-3333-1111--------------------------------------------|