My Boyfriends Ex Girlfriends - Katy Perry (凯蒂·佩里)

One day I was sitting in class

Got a note saying watch your back

Someone told me who it was from

She wasn't happy because she just got dumped

It was over but not in her mind

It's not my fault he left her behind

I always knew they had a history

I didn't know that it included me

She wasn't ready to let him go

Now I'm dealing with a psycho

My boyfriend's ex girlfriend

I think she's going off the deep end

She loves him she hates me

They broke up now she wants to blame me

Na na na na na

Na na na na na na na

Went to a party on a Saturday night

I wasn't planning to get in a fight

All I wanted was to have some fun

You know I'd never wanna hurt no one

She walked over thinking she was so tough

She stared me down but she had to look up

Then she started to lose control

What can I say that's rock and roll

I wasn't sure but now I know

That I'm dealing with a psycho

My boyfriend's ex girlfriend

I think she's going off the deep end

She loves him she hates me

They broke up now she wants to blame me

Wake up girl

'Cause it's over

It's time to get a life

Go cry on your own shoulder

Can't you see that he's mine

My boyfriend's ex girlfriend

I think she's going off the deep end

She loves him she hates me

They broke up now she wants to blame me

My boyfriend's ex girlfriend

My boyfriend's ex girlfriend

Na na na na na

Na na na na na na na

Na na na na na

Na na na na na na na

My boyfriend's ex girlfriend

Na na na na na na na

My boyfriend's ex girlfriend

Na na na na na na na