[Verse 1]
               G          Em                Bm
When I look at old stuff, lookin' like it's over
C                G              Em       Bm
Lookin' like I'm never going to be that again
N.C.        G         Em                  Bm
Crying over old loves even though they're over
C          G     Em         N.C.
Never gonna stay friends, yeah, stay friends
 
 
[Chorus]
G                   Em
  They think I'm happy
Bm                  C           G
  They think I'm happy when I'm sad
                  Em
They think I'm happy
Bm               N.C.
  They think I'm happy when I'm
G                 Em
  They think I'm happy
Bm                C             G
  They think I'm happy when I'm sad
                Em
They think I'm happy
Bm                C
  They think I'm happy when I'm
 
 
[Verse 2]
           N.C.   G        Em          Bm
Can't look how we made it, say congratulations
C                 G        Em      Bm
Lookin' like I'll never be lonely again
N.C.          G       Em           Bm
See me in the mirror, nothin' ever changes
C            G   Em   N.C.
Never see the sunset, only in my head
 
 
[Chorus]
G                   Em
  They think I'm happy
Bm                  C           G
  They think I'm happy when I'm sad
                  Em
They think I'm happy
Bm               N.C.
  They think I'm happy when I'm
G                 Em
  They think I'm happy
Bm                C             G
  They think I'm happy when I'm sad
                Em
They think I'm happy
Bm                C    N.C.
  They think I'm happy when I'm
 
 
[Post-Chorus]
             Em
Never gonna stop
Bm          C
Never gonna calm down
G            Em
Never gonna stop
Bm                C
  They think I'm happy when I'm
G            Em
Never gonna stop
Bm          C
Never gonna calm down
G            Em
Never gonna stop (No)
Bm                C
  They think I'm happy when I'm
 
 
[Bridge]
G   D G            D                C D    G
       I put on a smile, don't need a face-lift
G   D G                D      C  D     G
      Why can't I when everybody fakes it?
 
G
  Well, they think I'm happy
Bm                 C           G
  Like they know exactly how I feel
         D
It ain't real, but they still think
 
 
[Chorus]
G                 Em
  They think I'm happy
Bm                C             G
  They think I'm happy when I'm sad
                Em
They think I'm happy
Bm                C
  They think I'm happy when I'm
G                 Em
  They think I'm happy
Bm                C             G
  They think I'm happy when I'm sad
                Em
They think I'm happy
Bm                C
  They think I'm happy when I'm
 
 
[Post-Chorus]
G            N.C.
Never gonna stop (I try)
Bm          C
Never gonna calm down
G            Em
Never gonna stop
Bm                C
  They think I'm happy when I'm
G            N.C.
Never gonna stop
Bm          C
Never gonna calm down
G            Em
Never gonna stop (No)
Bm                C              G   D G
  They think I'm happy when I'm