Here's how i think it's played... 
Very easy song to learn.

Main Riff (Verse/Intro)
G --------------------
D --------------------
A -------------6666666
E ---7777-8888--------

(Keep playing until you hear the chorus)

Chorus
G ---------------------
D ---------------------
A -------------66666666
E ---7777-3333---------

The Piano Solo kicks in (pause at this time)

Then i believe you play the 1st verse/intro 2x
then you go into the normal chorus

Please feel free to email me with suggestions,
Or comments, this is my first tab, i give lots 
of credit to my friend britt. she kind of figured
the tab i just listened and corrected.
Any q's: A* 
Oh and have fun playing!