Hehe yeah, she definitely doesn't have the biggest voice in the industry... but there's something about her. It's almost like she's well aware of that she's not a huge singer so she put all she got into make a great show.
Kind of like Britney Spears, her voice is dull as hell, but that girl knows how to put on a show, or at least she knew.
I think the electro stuff really fits her voice, like "Nu-Di-Ty" & "Speaker Phone" (if you've heard them), and uhm... I like "Red Blooded Woman" also.
BTW, have you heard "BOA"?!