央视风云音乐频道环球红歌榜里的歌，MV是场婚礼，歌名好像是叫《忽冷忽热》我怎么一找不到

Hot N Cold by Katy Perry

http://bf.media.v4.skyrock.net/music/bfe/69e/bfe69e5e343e894a7873684fba58c3fb.mp3

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
Yo