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.

With her new album, “Something Beautiful,” the pop star finally has material worthy of her instrument.

Miley Cyrus sounds pretty committed to her signature sound. During a recently released interview with Apple Music’s Zane Lowe, Cyrus talked about having Reinke’s edema. According to the Cleveland Clinic, the condition is “a noncancerous vocal cord disorder” whose “hallmark symptoms are hoarseness and a noticeably deeper voice.”