Iris has been working the folk scene for a very long time and has performed with many of the all-time greats, including: Nanci Griffith, Guy Clark, John Prine, James Taylor, Emmylou Harris, Garrison Keillor, and the list goes on and on and on. Here's a collaboration with Nanci and Emmy:
And here's a recording of Iris from the True Grit soundtrack:
Her most recent album was released on October 2nd. You can give a listen here.