She is the finest female pop vocalist I have ever heard.
Gotta include Anne Murray, Patsy Cline, Dinah Washington, Ruthie Henshall also in the top 5.
Giving credit to Annie Lennox, Stevie Nix and Natalie Merchant also
She had a great contralto voice.
My favorite female singers include Vera Lynn, Vaughn De Leath, Aileen Stanley, Jane Green and Ruth Etting.