i'd like to see that Brad.
i started reading about mariah carey's range a little more because i found it difficult to believe and there appears to be a lot of controversy. so, i don't know how valid a lot of the info for her 'claim to range' is out there. wikipedia is pretty neat because it's like a peer review. i'd say she can go really high, but i'm not so sure she has the bottom to top range that her publicity crew claims.