In a "rap" video that has to be seen for its awfulness to be believed, young Miley Cyrus and her fly girls or whatever explain why Miley quit Twitter: to protect her private life, to "live for the moment" instead of "living for people," and because she's just "too busy." On that last one, at least, Miley doth protest too much, 'cause this video, while bad, probably took her at least an entire day to put together (not that she bothered to memorize her lyrics.)