Why complicate the chords of this beautiful song? Here's a simple, yet effective 
and  better sounding  chords that a novice guitarist on a standard tuning can 
easily play. Accurate to the voice of Katy. Keep playing!!

Roar
By: Katy Perry

Intro: A-A-A-A

A
I used to bite my tongue and hold my breath
                        B                       F#m
Scared to rock the boat and make a mess
                                   Dbm
So I sat quietly, agreed politely
A
I guess that I forgot I had a choice
                                B                     F#m
I let you push me past the breaking point
                                        D
I stood for nothing, so I fell for everything


A
You held me down, but I got up
           E
Already brushing off the dust
      F#m
You hear my voice, you hear that sound
                 D
Like thunder, gonna shake the ground
A
You held me down, but I got up
                E
Get ready cause I’ve had enough
  F#m
I see it all, I see it now



Chorus:
             D            A                                            Bm
I got the eye of the tiger, a fighter, dancing through the fire
         F#m                                          D          A
Cause I am a champion and you’re gonna hear me ROAR

Louder, louder than a lion
         F#m                                          D           A
Cause I am a champion and you’re gonna hear me ROAR

Oh oh oh oh oh oh

Oh oh oh oh oh oh
F#m
Oh oh oh oh oh oh
                    D           A
You’re gonna hear me roar



A
Now I’m floating like a butterfly
                     Bm                  F#m
Stinging like a bee I earned my stripes

I went from zero, to my own hero


A
You held me down, but I got up
             E
Already brushing off the dust
      F#m
You hear my voice, you hear that sound
                               D
Like thunder, gonna shake the ground
       A
You held me down, but I got up

Get ready ’cause I’ve had enough
   F#m
I see it all, I see it now


 [Chorus]
              
     D        A                                                          Bm
I got the eye of the tiger, a fighter, dancing through the fire
         F#m                                          D          A
Cause I am a champion and you’re gonna hear me ROAR
                               Bm
Louder, louder than a lion
         F#m                                                      D           A
Cause I am a champion and you’re gonna hear me ROAR

Oh oh oh oh oh oh
     Bm
Oh oh oh oh oh oh
F#m
Oh oh oh oh oh oh
                       D           A
You’re gonna hear me ROAR


     Bm
Oh oh oh oh oh oh
F#m
Oh oh oh oh oh oh
                     D           A
You're gonna hear me ROAR
Bm                  F#m
You’ll hear me ROAR

Oh oh oh oh oh oh
                   D           A
You're gonna hear me ROAR...

Bm- F#m-E
E
Roar-or, roar-or, roar-or, roar-or, roar-or

    D         A                                                        Bm
I got the eye of the tiger, a fighter, dancing through the fire
         F#m                                                       D           A
‘Cause I am a champion and you’re gonna hear me ROAR
                            Bm
Louder, louder than a lion
          F#m                                               D           A
‘Cause I am a champion and you’re gonna hear me ROAR

Oh oh oh oh oh oh
      Bm
Oh oh oh oh oh oh
F#m
Oh oh oh oh oh oh
                      D          A
You’re gonna hear me ROAR

Oh oh oh oh oh oh
      Bm
Oh oh oh oh oh oh
 F#m
Oh oh oh oh oh oh
                  D    A
You'll hear me ROAR

Oh oh oh oh oh oh
                      D          A
You're gonna hear me ROAR...