作词 : DR
作曲 : Lukasz Gottwald/Max Martin/Katy Perry
You change your mind
Like a girl changes clothes
Yeah you PMS like a bitch
I would know
And you always think
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 and you’re out
You’re up and 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 wanna stay no
You but you don’t really wanna go oh
‘Cause you’re hot then you’re cold
You’re yes then you’re no
You’re in and you’re out
You’re up and you’re down