Basic version.

Intro.

G --------------- |---------------- |
D -7--7--7-7-9--- |--7--7--7-7-9--- |
A --------2------ |-2-------2------ |
E --------------- |---------------- |

Main Riff.

G ------------------ |
D -77777779-9999999- |
A ------------------ |
E ------------------ |

Listen to the song for the tempo.