yo, this is a very easy as well as great song. 

i got this by listening to the cd and watching it live, 
but some if not all the music videos play it one note higher

so if you go by the videos u would have to hit 4s instead 3s and 6s instead of 5s and so on.

                                   ________________________________
  __________________              |these numbers are how many times|
 | ~ = let note ring|             |you play the set                |
  ------------------               -----|--------------------------
                                        |
(intro) after the guitar plays once    \|/
|------------------------------------|  V
|------------------------------------|(x1)
|-3-(x16)--------------------3-(x16)-|
|----------3-(x16)--5-(x16)----------|
       ^
      /|\
 ______|_________________________________________
|these numbers are how many time you hit the note|
 ------------------------------------------------

(pre chorus)
|--------------------------------|
|--------------------------------|(x1)
|-5-(x8)----------3-(x8)---------|
|---------1-(x8)----------3-(X8)-|


(chorus) which is the same as the pre chorus
|--------------------------------|
|--------------------------------|(x4)
|-5-(x8)----------3-(x8)---------|
|---------1-(x8)----------3-(X8)-|


(verse) which is the same as the intro
|------------------------------------|
|------------------------------------|(x2)
|-3-(x16)--------------------3-(x16)-|
|----------3-(x16)--5-(x16)----------|

[play pre chorus again]

[play chorus again]

(slow part) i wouldn't consider this a bridge
|--------------------------------|
|--------------------------------|(x4)
|-5~--------------3~-------------|
|---------1~--------------3~-----|

(last chorus) same as the others only longer
|--------------------------------|
|--------------------------------|(x8)
|-5-(x8)----------3-(x8)---------|
|---------1-(x8)----------3-(X8)-|