I am sure a lot of people loved her,
but I never heard of her.
In the movie, "O Brother, Where Art Thou?" she was part of the soundtrack.
Mia Tate, Musetta Vander, and Christy Taylor as the three sirens. Their singing voices are dubbed by Emmylou Harris, Alison Krauss, and Gillian Welch.She also sang "Down to the River to Pray" and "I'll Fly Away" along with Gillian Welch.
Singing "Didn't Leave Nobody But the Baby"
Alison Krauss is a bluegrass icon who appeared on the music scene in the late 1980s with her high, pure and sweet voice and talent as a fiddle player. She’s received 27 Grammys for her work.
This clip does not feature her singing but can give you an idea of her style of music....
Alison Krauss and Union Station - Man of Constant Sorrow - Sung by Dan Tyminski
https://www.youtube.com/watch?v=EuJ8xEByUf4
I’ve seen her both times she toured with Robert Plant as Plant and Krauss. She’s pretty wonderful.