Debates have raged for years about whether it’s okay for performers to lip-synch while performing live. “But now, after decades of derision and outrage, audiences are warming up to the fakery.” Indeed, some fan “not only don’t mind a little gimmickry — they prefer it. They may have no choice: live pop performances rely on an ever-more-intricate mix of live music, prerecorded sound and high-tech tricks, including new programs that produce the same flawless sound as a lip-synched performance, even if the person singing is jumping around, hanging upside-down or just plain out of tune.”