This song's easy as pie. Enjoy!

G
Smile
                          C
You can forget about your life
G
Smile
                          C
You can forget about your life

     F         C
The truth will follow you
     F         C
The truth will follow you
    F          C
The proof will swallow you up
F
Holy shit, you got some action

(stop strumming)
Pictures or it didn't happen

G
Smile, smile
                                  C
Your teeth are broke and it's all right
G
Smile, smile
                                  C
Your teeth are broke and it's all right

        F         C
They'll break the best of you
        F         C
They'll break the best of you
   F         C
It makes you beautiful
F
So fists into the lips of fashion

(stop strumming)
Pictures or it didn't happen

C                              D
I had such an awful dream last night
C                          D
Everybody's faces were too tight
C                                       D
Please don't leave me in this nightless light
C              D
God, I'm gonna miss you when you

G
Smile
                              C
The end is near and it's high time
G
Smile, smile, smile
                              C
The end is near and it's high time

    F        C
The light's amazing, man
   F         C
So time your Instagram
    F       C
The rapture swallowing the
F
Land, but we're the last ones laughing
Pictures or it didn't happen

(stop strumming)
Get it 'cause we'll all be dead
And no one dead can use a camera

C                              D
I had such an awful dream last night
C                          D
Everybody's faces went all white
C
Everybody in the world was either
Getting killed or getting footage of the killing
                                          D
That they sent to surgeons working in the sky

C
I don't wanna
              D
I don't wanna go to
                    C
I don't wanna go to Cali
                    D
I don't wanna go to California

                C    D
I don't want to die
                C    D
I don't want to die
                C    D
I don't want to die

(C until end)




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Thanks to 88BlackBat88 at The Shadowbox for posting the chords. He deserves all 
the credit, I just compiled it together with the lyrics for easier reading/
performing. If you see him around, tell him thanks!