Verse:
G              D  
You change your mind, 
Am                 C
Like a girl changes clothes,
etc. (the same for all the verses)

Chorus: 
G             
Your hot then your cold
D
Your yes then your no,
Am
Your in then your out,
C
Your up then your down
etc. for whole chorus

Verse

Chorus

Bridge:
Em          C
Will someone call the doctor
G             D
I got another case of bipolar
etc......
[Pluck or strum slowly]
G                D
You change your mind,
Am         C 
Like a girl changes clothes

Chorus a couple of times and then your'e good =]

Enjoy xx. 



GDAmC
You change your mind Like a girl changes clothes Yeah you PMS Like a chick, I would know
And you overthink Always speak cryptically I should know That you're no good for me

'Cause you're hot then you're cold You're yes then you're no You're in then you're out You're up then you're down
You're wrong when it's right It's black and it's white We fight, we break up We kiss, we make up
You! You don't really want to stay, no You! But you don't really want to go-o
You're hot then you're cold You're yes then you're no You're in then you're out You're up then you're down

We used to be Just like twins, so in sync The same energy Now's a dead battery
Used to laugh 'bout nothing Now you're plain boring I should know that you're not gonna change

'Cause you're hot then you're cold You're yes then you're no You're in then you're out You're up then you're down
You're wrong when it's right It's black and it's white We fight, we break up We kiss, we make up
You! You don't really want to stay, no You! But you don't really want to go-o
You're hot then you're cold You're yes then you're no You're in then you're out You're up then you're down

[Bridge EmCGD,GDAmC]
Someone call the doctor Got a case of a love bi-polar Stuck on a roller coaster Can't get off this ride

You change your mind Like a girl changes clothes

'Cause you're hot then you're cold You're yes then you're no You're in then you're out You're up then you're down
You're wrong when it's right It's black and it's white We fight, we break up We kiss, we make up

'Cause you're hot then you're cold You're yes then you're no You're in then you're out You're up then you're down
You're wrong when it's right It's black and it's white We fight, we break up We kiss, we make up

You! You don't really want to stay, no You! But you don't really want to go-o
You're hot then you're cold You're yes then you're no You're in then you're out You're up then you're down

Read more: KATY PERRY - HOT N COLD LYRICS