Tuning - Whole step down then drop d (Drop C)
lots of people have said that the riff is originally on bass, i dont think it is, if u 
the bass has a different tone in the verse. i think this is how its played, any qs or 
welcome!!

Intro/Chorus

d---------------------------------------------------------------------------|
a---------------------------------------------------------------------------|
f---------------------------------------------------------------------------|
c----------------------------------/7-5---5---------------------------------|
g------------/5-8-5-8-5-8---------------8---8-5-----------------------------|
c--0-0-0-0-00-------------0-0-0-0-00----------------------------------------|

                                                     T.P
d----------------------------------------------------------------------------|
a----------------------------------------------------------------------------|
f----------------------------------------------------------------------------|
c---------7-5----5--------5-------------------5---7---7777755557777733335555-|
g--5-8--------8----8-5--8---8-5---------5-8-5---5----------------------------|
c-------------------------------5-7-5-7--------------------------------------|

d----------------------------------------------------------------------------|
a----------------------------------------------------------------------------|
f----------------------------------------------------------------------------|
c-777777s10101010s12121212s14141414s121212s1010101010--7-5-8-5-8-------------|
g----------------------------------------------------------------------------|
c------------------------------------------------------------------0-0-0-0-0-|
                                                                   ^
                                                Beginning of main riff again

Thats how i play it anyway, enjoy!!