A Motown artist like Diana or Tammi conveys a lower-key kind of charisma than her
louder and rougher-sounding counterparts.
A "sexy country voice." A "sexy, supple" style. A "warm" and "sensuous" hand-in-glove quality with a certain other. You see where I'm going? :)
Yet beauty is in the ear of the listener. So lionesses like Gladys might make your knees wobble with every break in her voice.