Very simple chord progressions. These are the chords I used for my cover on 
YouTube. If you want to see how I play it ( quite simple really ) here's the link to my cover 

You'll see that on my video, I play it with the capo on the 1st fret to suit my voice.

http://youtu.be/YUCQg9w31wk 

Capo 3rd

Bm                D       
We clawed, we chained, our hearts in vain
A                    G
We jumped, never asking why
Bm                             D   
We kissed, I fell under your spell
A                    G 
A love no one could deny

Bm                             D      
Dont you ever say I just walked away
A                    G
I will always want you
Bm                             D   
I cant live a lie, running for my life
A                    G
I will always want you

                      D              A
I came in like a wrecking ball
Bm                    G
I never hit so hard in love
              D              A 
All I wanted was to break your walls
Bm                    G
All you ever did was break me
Bm                G
Yeah, you wreck me

Bm                D       A       G
I put you high up in the sky
And now, youre not coming down
It slowly turned, you let me burn
And now, we’re ashes on the ground


Bm       D        A         G
Dont you ever say I just walked away
I will always want you
I cant live a lie, running for my life
I will always want you

D         A       Bm      G
I came in like a wrecking ball
I never hit so hard in love
All I wanted was to break your walls
All you ever did was break me
I came in like a wrecking ball
Yeah, I just closed my eyes and swung
Left me crouching in a blaze and fall
All you ever did was break me
Yeah, you wreck me

                          Bm                           
I never meant to start a war
                                     D
I just wanted you to let me in
                                F#m
And instead of using force
                           G
I guess I should’ve let you in
                            Bm
I never meant to start a war
                                     D
I just wanted you to let me in
                           F#m
I guess I should’ve let you in

Bm                               D
Dont you ever say I just walked away
A                          G
I will always want you

D                                                      A
I came in like a wrecking ball
                  Bm                  G
I never hit so hard in love
                       D                                  A
All I wanted was to break your walls
                        Bm                   G
All you ever did was break me
D                                                     A
I came in like a wrecking ball
                       Bm                       G
Yeah, I just closed my eyes and swung
               D                                  A
Left me crouching in a blaze and fall
                             Bm            G
All you ever did was  break me
           Bm            G
Yeah, you wreck me