Drop D tuning.
very tricky with the timing in the intro.

(0:11) and again (1:35)
G--8-6----
D------8-6
A---------
D---------

to verse and chorus
G-----------------------------------------------------------------------------------------------------------
D-1-1-----4--6--3-4/1-1-------------------------------------------------------------------------------------
A-----2-2---------------2-2---------------------------------------------------------------------------------
D---------------------------0h2/6--3-4----------------------------------------------------------------------

all this is, is an octave switch.  Just keep listening for when he goes to the high D and when he stays on the low D.