F#m -> Fm
A   -> Ab
E   -> Eb
D   -> Db

Or with a capo on 1st fret (in standard tuning), the chords would then be:
F#m -> Em
A   -> G
E   -> D
D   -> C

Leave a comment, if you have any corrections :D

Intro:
We can’t, we can’t back down
We can’t, we can’t back down
We can’t, we can’t back down
We can’t, we can’t back down
Not right now, we can’t back down
Not right now, we can’t back down
We can’t back down
We can’t back down

Verse:
                 F#m
Don’t close your eyes, 
  A                  E         D
We’re all in this together, wherever
              F#m
They draw the line, 
  A                     E            D
Weren’t gonna straddle across it or lose it

Chorus:
              F#m               A
We can’t back down, there’s too much at stake
        E              D
This is serious, don’t walk away
            F#m            A
We can’t pretend it’s not happening
        E              D
In our own backyard, I wanna play
              F#m         A
We can’t call out. Do you hear your name?
    E                  D
I’m not confused, lets win this thing
              F#m               A
We can’t back down, there’s too much at stake
      E                D
Don’t walk away, don’t walk away

Verse:
             F#m
Don’t get me wrong, 
A                 E
I don’t like confrontation
         D               F#m
I rather we all just get along
A                  E        D
Music should be undivided, united

Chorus:
              F#m               A
We can’t back down, there’s too much at stake
        E              D
This is serious, don’t walk away
            F#m            A
We can’t pretend it’s not happening
        E              D
In our own backyard, I wanna play
              F#m         A
We can’t call out. Do you hear your name?
    E                  D
I’m not confused, lets win this thing
              F#m               A
We can’t back down, there’s too much at stake
      E                D                          F#m  A  E  D
Don’t walk away, don’t walk away, don’t walk away

Bridge:
   F#m                      A
We got a situation, that we can’t ignore
                   E                            D
Cause ignorance is not bliss, we don’t have to take this, no!
F#m                           A
With every big decision comes incapably important
         E                  D
Share of the risk, we gotta take this, oh!!

Chorus:
              F#m               A
We can’t back down, there’s too much at stake
        E              D
This is serious, don’t walk away
            F#m            A
We can’t pretend it’s not happening
        E              D
In our own backyard, I wanna play
              F#m         A
We can’t call out. Do you hear your name?
    E                  D
I’m not confused, lets win this thing
              F#m               A
We can’t back down, there’s too much at stake
      E                D
Don’t walk away, don’t walk away

Outro:
We can’t back down
We can’t back down
Not right now
We can’t back down