Because her name is Esperanza Spalding. Because she has a most righteous fro. Because she is the only jazz artist to ever win a Grammy. Because she plays double bass and the cello! Because she has her own unique voice. (yes! the picture shows a bass).
*In case of confusion: It is known that Esperanza plays Double Bass and Cello-the Cello being MY favorite. Yes. Esperanza is the only Jazz singer to win a Grammy Award for Best New Artist-NO other jazz artist has that title..including the legendary Miles Davis.