Fairly Simple chords to this one, and can easily be played with and without a capo.
To use a capo on two substitute:
F#  => E
F#m => Em
C#  => B
B   => A
G#  => F#m
A   => G


Full lyrics:

[Chorus]
F#
Upside down
C#
Inside out
   B               F#
If I had a gun I'd blow my brains out
F#                  C#
Fifty thousand feet up in the clouds
   B               F#
If I had a gun I'd blow my brains out

[Verse 1]
F#
Rolling the dice two and a three
      C#
There ain't nothing left if you're leaving me
    B                               F#
Get out of my head get out of my bed

F#
Cannibal love animal lies
C#
Annabel's heart annabel's thighs
B                                         F#
Everything now that you've ever dreamed of

[Chorus]
F#
Upside down
C#
Inside out
   B               F#
If I had a gun I'd blow my brains out
F#                  C#
Fifty thousand feet up in the clouds
   B               F#
If I had a gun I'd blow my brains out


[Verse 2]
(Chords as before)
F#
Now that you're born now I can't breathe
  C#
I feel the rush from the empathy, yeah
    B                                F#
And I wanna touch and all I wanna be

F#
He's the only one you ever need
C#
High strung maestro plants the seed, yeah
    B                                           F#
And I don't know and I feel like it's killing me

[Pre-Chorus]
F#             C#
When I see you wishing you drag me home
B                F#
  When I see you wishing on dragon bones
F#             C#
When I see you wishing you drag me home
B                F#
  When I see you wishing on dragon bones

[Chorus]
F#
Upside down
C#
Inside out
   B               F#
If I had a gun I'd blow my brains out
F#                  C#
Fifty thousand feet up in the clouds
   B               F#
If I had a gun I'd blow my brains out

[Bridge]
             F#m    
'Cause you're all ('cause you're all)
      G#m
That I want (that I want)
            A                   F#
Yeah you're all (yeah you're all) That I need (that I need)

[Pre-Chorus]
F#             C#
When I see you wishing you drag me home
B                F#
  When I see you wishing on dragon bones
F#             C#
When I see you wishing you drag me home
B                F#
  When I see you wishing on dragon bones

[Chorus]
F#
Upside down
C#
Inside out
   B               F#
If I had a gun I'd blow my brains out
F#                  C#
Fifty thousand feet up in the clouds
   B               F#
If I had a gun I'd blow my brains out

[Chorus]
F#
Upside down
C#
Inside out
   B               F#
If I had a gun I'd blow my brains out
F#                  C#
Fifty thousand feet up in the clouds
   B               F#
If I had a gun I'd blow my brains out

[Outro]
          F#
On dragon bones, bones, bones
          C#
On dragon bones, bones, bones
          B
On dragon bones, bones, bones
          F#
On dragon bones, bones, bones

来源：www.ultimate-guitar.com