The correct answer to this open question is the following.
Upon hearing the music of Billie Holliday and Bessie Smith something that sticks out at me from hearing their songs is the passion both singers have in each performance.
Both singers, Holyday and Smith, performed with such a great passion, feeling, and sentiment, that really hits you hard. These African American singers had so much pain and suffering inside, that one of the ways they release those feelings through singing. African American singers have this talent to perform on stage and a range of vocals that really impressed their audiences.
Jazz music has something magical or sensitive music element that is what connects with fans and is part of the link between performers and the audience.