Linda Ronstadt "Underrated"?! Doesn’t everyone appreciate her? Well, except for Elvis Costello ;-) . Am I taking the question too literally?
Those who like Iris DeMent LOVE her. How about Lou Ann Barton? Tammy Wynette? Mavis Staples? Ruth Brown? Arlene Smith (of The Chantels. Listen to her sing "Maybe" to have your mind blown)? Darlene Love? Emmylou Harris? Sure, appreciated, but not enough so. Kasey Chambers? Julie Miller? Sam Phillips? Maryann Price? Listen to her sing "I’m An Old Cowhand" on Striking It Rich by Dan Hicks And His Hot Licks. So salacious!