FILE - Robert Plant & Alison Krauss perform at the Jay Pritzker Pavilion, June 7, 2022, in Chicago. T Bone Burnett?s production of the ?O Brother, Where Art Thou?? soundtrack and the ?Raising Sands? collaboration between Krauss and Plant are celebrated and responsible for many of his 13 Grammy Awards. (Photo by Rob Grabowski/Invision/AP, File)