I am happy in your head
But I know you don’t care
It’s never made a difference
It’s okay, I don’t care
But happy birthday
Happy birthday
I know that everything has changed
But I want you to be there
I hate that everything has changed
I thought that you’d be there
But happy birthday
Happy birthday
Kiss your forehead, I'm in love
Crying "It's different now it's done"
I am your twenty years bad luck
Miss your boyfriend, you're in love
I'll die for the putrid things I’ve done
I am your twenty years bad luck
I am your twenty years bad luck
I am happy in your head
But I know you don’t care
I am happy in your head
But I know you don’t care
I am happy in your head
But I know you don’t care
I am happy in your head
But I know you don’t care, you don’t care, you couldn’t care less
Happy Birthday
Kiss your forehead, I'm in love
Crying "It's different now it's done"
I am your twenty years bad luck
Miss your boyfriend, you're in love
I'll die for the putrid things I’ve done
I am your twenty years bad luck
I am your twenty years bad luck