Miley Cyrus is opening up about a rare medical condition she says contributes to her signature voice and makes performing a serious challenge. In a recent appearance on Apple Music's " The Zane Lowe Show ," the Grammy-winning singer revealed she has Reinke's edema, a condition that causes swelling in the vocal cords and affects vocal performance.

But I’m going to go out on a limb here and say that the reason people really like Cyrus is that she has a fantastic hoarse and smoky voice and can sing the heck of a good song.