I think my version is quite accurate, tabbed by myself by ear. Enjoy :)

***CAPO ON 2nd FRET***



Us against the world
Against the world
Us against the world
Against the world

	Em	      C
You and I, we’ve been at it so long
   G	                   D
I still got the strongest fire
	Em	      C
You and I, we still know how to talk
 G	               D
Know how to walk that wire

Am
Sometimes I feel like
      C
The world is against me
      G
The sound of your voice, baby
D
That's what saves me
Am		       C             G    D    
When we're together I feel so invincible


	   C  	            G
Cause it's us against the world
 	D	         C
You and me against them all
	C	         G
If you listen to these words
	   D	           C
Know that we are standing tall
	C	      D
I don't ever see the day that
	  G	            C
I won't catch you when you fall
	   C	            G	       D              
Cause it's us against the world tonight
C
Us against the world
Against the world

             Em
There’ll be days
	 C
We’ll be on different sides but
G		        D
That doesn’t last too long
	Em	 C
We find ways to get it on track
G			  D
And know how to turn back on

Am
Sometimes I feel
          C
I can’t keep it together
G
Then you hold me close
         D
And you make it better
Am		        C	        G   D
When I’m with you I can feel so unbreakable


	    C  	            G
Cause it's us against the world
 	D	         C
You and me against them all
	C	         G
If you listen to these words
	  D	           C
Know that we are standing tall
	C	      D
I don't ever see the day that
	 G	            C
I won't catch you when you fall
	    C	           G	  D    Dsus4
Cause it's us against the world tonight

	Am
We’re not gonna break
	C
Cause we both still believe
    G
We know what we’ve got
	D		     C
And we’ve got what we need alright
Em	              Cadd9         D	  
We’re doing something right

           C               G
Cause it's us against the world
 	D	         C
You and me against them all
	C	        G
If you listen to these words
	  D	           C
Know that we are standing tall
	C	      D
I don't ever see the day that
	G	            C
I won't catch you when you fall
	   C	           G	 D
Cause it's us against the world tonight

           C  	           G
Cause it's us against the world
 	D	         C
You and me against them all
	C	        G
If you listen to these words
	  D	           C
Know that we are standing tall
	C	      D
I don't ever see the day that
	 G	            C
I won't catch you when you fall
C	        G
Us against the world
	  C	          G
Yeah it’s Us against the world, baby
C	        G
Us against the world
D
Tonight
C
Us against the world
Against the world
Us against the world