I used to kiss when you'd come home
Now you're in places I don't know
But I guess that's how it goes
Used to share every weakness
Now you're keeping a secret
There's a stranger in my home

Oh, you're cold-blooded
So give me something
Just anything at all

Lately you look at me differently
Tell me, who's in your head?
Maybe my mind's playing tricks on me
Maybe you are instead
Tell me, who's in your head?

Ah, ah, ah, ah, ah, ah, ah, ah, ah
Who's in your head?
Ah, ah, ah, ah, ah, ah, ah, ah, ah
Who's in your head?

Drown my thoughts down the bottle
I do whatever
'Cause they're telling me I should run
But I don't wanna let go
I'm begging please set me free
Won't you give me something
Just anything at all

Lately you look at me differently
Tell me, who's in your head?
Maybe my mind's playing tricks on me
Maybe you are instead
Tell me, who's in your head?