The tuning is standard although my guitar might be a halfstep down either way its 
the same thing :) enjoi



Verse

 Em       G                 D                 C
Hard to take, the days you just cant catch a break

 Em       G               D            C
When it brings me down, i get right back up            


Chorus
           Em         G            D                   C
Cause im powerful, incredible, Independent girl, ready for the world

     Em      G                               D                  C
Come on, tonight im unstoppable, incredibly strong tonight im unstoppable
Chorus

     Em               G       D                 C     
The world is calling me out, don't runaway come on and shout


to get that effect at the end of each bar that they have play this
  C        Em
e-3-3-----0-0
b-1-1-0-0-0-0
g-0-0-0-0-0-0
d-2-2-0-0-2-2
a-3-3-0-0-2-2
e-0-0-x-x-0-0

and thats it all there is too its very simple i believe she might play it a tab 
bit different but im sure this is as accurate as its gonna get



http://www.youtube.com/watch?v=QwT4wxeLdHQ