All power chords.
Intro:
A-E-B-D-E
verse one:
A-E-B-D-E
A-E-B-D-E
bridge/chorus:
D-A-E-A - E shred with fat E open holding power chord on A string.
verse two:
A-E-B-D-E
A-E-B-D-E
bridge/chorus:
D-A-E - E is shred with fat E open holding power chord on A string, fret 7.
Song ends on A.