I agree. Once,her voice sounded free, she touched hight notes very easy but now Hayley sounds like she harass her to touch that notes. On the other side, her voice evoluted. Her vibrato is more accentued now.
Listen how she sounds ant 3:43 .. maybe she does't warm
up her voice before singing [hope] because that's not the Hayley's voice I knew.
It seems like she has some involuntary pauses in her voice - that's happened in the VMA performance too, in the part with Oh,oh,oh.. [you know what I mean] but she had an excelant vibrato at "can't" "here" "up" . Whatever I liked the VMA performance but again, her voice seems a bit pulled too hard
here's the audio of the vma's
http://www.youtube.com/watch?v=kE4KkA3Engg
skip to 3:09 for that part
She evoluted thenicaly but her voice is too tired.
Only my opinion, I'm not a profesionally to BE SURE of this.
Thank you for reading this