4 Carats Lyrics: The door's unlocked / And you don't even have to knock / Or you can use the fireplace / I'll be waiting either way / You come and go / And no one is supposed to know / But ever Lyrics to '4 Carats' by Kelly Clarkson. Kelly Clarkson - 4 Carats Lyrics. Lyrics to 4 Carats by Kelly Clarkson from the Wrapped in Red album - including song video, artist biography, translations and more! The door's unlocked And you don't even have to knock Or you can use the fireplace I'll be waiting either way The door's unlocked And you don't even have to knock Or you can use the fireplace I'll be waiting either way You come and go And no one is