I've never touched an instrument but I want to learn White Houses by Vanessa Carlton on the piano, hard?

I've never even touched an instrument but I really wanna learn this song and perform it at my school's talent show later this spring. Would it be possible for me to learn it? Or is this something that is going to take a longer amount of time than just a few months? Would I need a teacher or could I teach myself? My friend's going to sing all I need to do is learn how to play it on the piano.