是今天蒙牛酸酸乳音乐风云榜上的。英文歌。中文是热与冷。MV是女主穿婚纱追男主的，帮我想想。谢谢

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