Intro: (Bass)
 A       G          D       A
E|--6-6-6|---4*4--4-|--7-7-7|---2p0h2--|
B|-----7-|--5----5--|-----7-|--2-------|
G|-------|----------| 5------|0---------|
D|5------| 3---------|-------|----------|

 A       G          D       A
E|--6-6-6|---4*4--4-|--7-7-7|---2*2----|
B|-----7-|--5----5--|-----7-|--2-------|
G|-------|----------| 5------|0---------|
D|5------| 3---------|-------|----------|

* means a quick rest

If this seems too complicated, it really isn't.
It's made from these four chords:
A  (5X76)
G  (3X54)
D5 (X577)
A5 (X022)

The guitar part is simple.
All it is is the same four chords:
A  (5776XX)
G  (3554XX)
D5 (X577XX)
A5 (X022XX)