Alison Krauss, Allison Moorer, Luke Combs, Ashley McBryde, Brad Paisley, Laura Cantrell, Chris Young, Florida Georgia Line, Blake Shelton, Dixie Chicks.....
The aforementioned Carrie Underwood, Kacey Musgrave....and the heavenly Emmylou Harris....who also has a magical duet with Elvis Costello...