written by Madonna, Gardner Cole, and Peter Rafelson
  Track 10, Time: 4:12
  -------------------------
  (Spoken:)
  Watch out!
    I see you on the street and you walk on by
  You make me wanna hang my head down and cry
  If you gave me half a chance you'd see
  My desire burning inside of me
  But you choose to look the other way
  I've had to work much harder than this
  For something I want don't try to resist me
    Chorus:
    Open your heart to me, baby
  I hold the lock and you hold the key
  Open your heart to me, darlin'
  I'll give you love if you, you turn the key
    I think that you're afraid to look in my eyes
  You look a little sad boy, I wonder why
  I follow you around but you can't see
  You're too wrapped up in yourself to notice
  So you choose to look the other way
  Well, I've got something to say
  Don't try to run I can keep up with you
  Nothing can stop me from trying, you've got to
    (chorus)
    Open your heart with the key
  One is such a lonely number
    Ah, ah, ah, ah
  Open your heart, I'll make you love me
  It's not that hard, if you just turn the key
    Don't try to run I can keep up with you
  Nothing can stop me from trying, you've got to
    (chorus)
    Open your heart with the key
    Open your heart, I'll make you love me
  It's not that hard, if you just turn the key
  (repeat and fade)