Like Sheryl Crow, Madonna, Jewel, et. al. Norah Jones is a product of great marketing.
Her albums benefit from very good production, superb studio musicians, and great promotion.
She is an average vocalist with extremely limited range.
Absolutely agree - you can add Diana Krall too - to me this is mostly about good looking women "crooners" with good backing and production and slinky video shots and album covers - a complete package. This is the same in many music genre's but serious audiophiles should be able to distinguish what is physical driven atttraction of a "performer" versus real talented musicianship.
In the male genre "Michael Buble" is the current equivalent - good looking crooner - too bad he can't sing!