Advice on New release cds of country music by older singers?

I want to buy a gift for a friend as she did something for me and I wish to thank her for it. She's older that me and has different musical tastes in some areas. I know she very much likes Willy Nelson, Dolly Parton and the like but I don't now what's what with them and I want something newly released rather than a back catalogue, so any suggestions? Thanks