Tuning: standard
The whole song is just the one riff played during the intro and chorus.
[ Tab from: http://www.guitaretab.com/m/mclusky/292783.html ]
e|---------------------------------------------------------|
B|---------6-7-7--6-7----6-7-7---------7-8-8--7-8----7-8-8-|
G|--6-7-7-------------7------------------------------------|
D|--6-7-7-----------------------7-7-7-------------8--------|
A|--4-5-5-----------------------7-7-7----------------------|
E|------------------------------5-5-5----------------------|
e|----------------------------------------------------------|
B|-------8-6-6-------6-5-5----------------------------------|
G|----------------------------------------------------------|
D|--8-8---------5-5---------7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-|
A|--8-8---------5-5---------7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-|
E|--6-6---------3-3---------5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-|
The verse is bass only, which just follows the root notes of the power chords.