Kathy MatteaKathy Mattea talks about her work on the Ken Burns Country Music documentary (including where Garth and Taylor fit in), and how she found her voice as a Nashville hitmaker. Charley PrideCountry music star Charley Pride on his biggest hits and his "permanent tan." Johnny MathisMathis talks about his fitness regimen, what music is most important to him, and his album with Chic. Rachael YamagataShe's written with Ryan Adams and Mandy Moore, but one of her most important songs found her on a mountain. Dhani HarrisonOn Tom Petty, being an honorary Heartbreaker/Wilbury, and releasing his first solo album at 39. Hamell on TrialIf Woody Guthrie was around in the age of Trump, he might sound like this guy. Steve EarleEarle on the true meaning of "outlaw" country, and why he wrote "Guitar Town."