Her voice is incredibly generic. I know at least a dozen girls who can mimic it perfectly. The band itself sucks. I don't have to explain why they suck, they suck for the same reasons that Nickleback and Creed suck. That's where I'd group them. Plus, I know that she's a slut and a bitch because she's from Little Rock and a bunch of my friends used to know her.
I'm one of the girls who can imitate her voice perfectly, but i don't do it for fear that I might commit suicide in a fit of disgust with myself for having one of those goddamn songs stuck in my head. Milla Jovovich is fucking delicious, however, as is Bjork and I used to love Janis Joplin until I got really high and realized her voice bears an uncanny resemblance to that of Marge Simpson.
I hope someone has mentioned Rilo Kiley... https://www.youtube.com/watch?v=mU6evKmwLhA&feature=related