I know where you came from And I know who your best friends are And you don't even know who I am You don't even know who I am You don't even know who I am I know where your house is And I know who your siblings are And you don't even know who I am You don't even know who I am You don't even know who I am Today is the worst day of my life I think I'm in love with the cards you were dealt How you felt, why you're wiser than me And it hurts that I'm not like you I know what you're scared of And I know what your blood type is And you don't even know who I am You don't even know who I am You don't even know who I am I know all your habits You keep the window open when you're asleep And you don't even know who I am You don't even know who I am You don't even know who I am I know when your Mom leaves She goes to work at the crack of dawn And you don't even know who I am You don't even know who I am You don't even know who I am Today is the best day of my life I invited myself in and wore your clothes Took your pills, cried your makeup off And for once I felt just like you I know that I scare you But I'm nowhere near the worst you've seen And you don't even know who I am You don't even know who I am You don't even know who I am