The rhythm is really hard on the main riff, so I advise either 
playing along with the song, or with a really good drummer who 
knows what he's doing.  FYI:  Half a beat is dropped every other 
measure during the riff.

Standard Tuning (EADG)

G|————————————X—X—————0—————2——————————
D|—7—7————————X—X—0—2———0—2—————7————7—   X4        (RIFF 1)
A|—————10—7———X—X——————————————————————
E|——————————9—X—X—————————————9———10———

G|—————————————————————————————————————
D|—————————————————————————————————————   X4        (RIFF 2)  
A|—5—5—5—5—3—3—3—3—————3—5—5—5—5——17/5—
E|—————————————————5—3—————————————————

(RIFF 1)

(RIFF 2)

(RIFF 1)

(REST FOR THE "LA LA'S")

(RIFF 2)

(RIFF 1)

G|—————————7—9———————————
D|—————7—9—————11—9——————   X3               (RIFF 3)
A|—5—9——————————————11—7—
E|———————————————————————

G|—————————————————
D|—————————————————   X2                     (RIFF 4)
A|—————5—5—————————
E|—5—5—————5—0—5—0—

Then it's just Riffs 3 and 4 repeated for the rest of the song. 
 This is a fun song once you get it down.  Enjoy!