for the last time, she doesn't sound like mariah carey... just because she does a whistle register doesn't mean she copies mariah carey, if anything, she copies minnie ripperton since she was the one who really started the whole whistle register. leona lewis doesn't have the breathy voice that mariah uses, and when leona goes to do her high notes, she is crystal clear, unlike mariah, when she does it she is more rapsy. again, they don't sound like one another....