Jean Shepard watched country music change around her for four decades and refused to change with it. While Nashville chased pop crossovers and smooth production, Shepard kept playing raw, unapologetic honky-tonk—and she wasn’t quiet about her contempt for what the genre was becoming.

Her career spanned from the early 1950s to the 2000s, making her one of the longest-tenured artists in country music history. But longevity alone doesn’t capture what made Shepard significant. She was the genre’s conscience, the artist who publicly called out every trend she considered a betrayal of country music’s working-class roots.

• How Shepard became one of the first women to sell a million country records
• The decades-long public crusade against pop-country that made her Nashville’s critic-in-chief
• Why her uncompromising honky-tonk sound influenced generations of traditionalist artists
• The personal cost of being country music’s most outspoken defender of authenticity