Miley Cyrus, 30, first burst onto the scene when she was only fourteen, playing the titular Hannah Montana—a regular teenager by day and a mega pop star by night. Of course, while we watched Miley grow up on screen, she was also growing up under the spotlight, which wasn't always easy. Now, she’s singing about the ups and downs of her youth in her new single, “Used to Be Young.” The video, which sees Cyrus singing emotionally into the camera, was released at midnight, and in a matter of less than twelve hours, it racked up over 1 million views. Check it out below.