I must admit that, while it's not to my taste, Mariah has a good voice. I mean, I don't like here voice, but there's no denying she has one. What sucked though was her, as a person. I'm sure she's a nice lady if you knew her, but on stage she came across as a self important primadonna. Her whole act was so contrived and cheesy, and I think she forgot that Live 8 was about raising awareness of the situation in Africa - it wasn't 'hey look at me I'm Mariah' day.
Plus I was waiting for Paul McCartney, The Who and Pink Floyd, so I just wanted her to be done.