I can´t wait for the album!!! I mean it´s so damn near... and #beautiful is so damn promising (#15 on itunes US now btw). Where is that other single released at the same time who some delusional people thought was going to do better? Ok About the tour... why do u guys worry so much? Even if u are Mariah fans it´s clear some of you are still kids. Of course she will use some backing tracks. I´ll tell you this: no more than my beloved Celine Dion for example. It´s a common thing and if they don´t want to totally lose their voices they have to do it. Nowadays young girls rely on backing tracks for whole concerts despite performing easiest songs (o nana goats my name) but they get a pass cos they are "singing" over the track the whole time. It´s normal that true vocalists have to lip some high notes after 25 years in the business. Get over it. They are still showing her current vocals with the backing tracks and of course still sing live for the most part of their concerts. She will be fine, she has made many tours by now, even if not too big