Miley Cyrus isn't doing anything to prove those who only recently became aware of her existence via the controversial things that she does, that she isn't anything but another plastic-pop star.
At the iHeartRadio Festival, the Diva had a perfect opportunity- with the live rendition of Wrecking Ball- to at least show detractors that there was a capable voice behind the gimmicks. Instead this happened [watch the video]. Wavering melody, pushed vocals- with a terrible attempt at improv at the song's closing- and a generally unpolished delivery ensued. We've heard that Cryus can sing, but performances like these aren't doing anything to enlighten those unaware of it.
Though I think the biggest problem highlighted by this, and the We Can't Stop performance, is the grating tone of her voice. It's something which isn't so apparent on the mastered versions, but becomes almost unbearable in this live set.
So was this a case of the emotion of her recent breakup getting to her, or is that just an excuse for a poor and lazy performer not putting in the effort?