Having watched the Kimmel performance, i worked out the intro and i think this is what 
is playing.

Correct me if im wrong!

Drop D tuning

E?----------------------------------|-----------------------------------------?
B?----------------------------------|-----------------------------------------?
G?----------------------------------|-----------------------------------------?
D?----------------------------------|-----------------------------------------?
A?--7--9-9--7--9-9--3--5-5--3--5-5--|-7--9-9--7--9-9--12-14-14--3--5-5--------?
D?--0--0-0--0--0-0--0--0-0--0--0-0--|-0--0-0--0--0-0--0--0--0---0--0-0--------?