PBS’s American Masters is celebrating their 30th anniversary with its latest documentary, Loretta Lynn: Still a Mountain Girl, airing this Friday during Women’s History Month.

Billboard Women in Music 'Legend' Loretta Lynn: 'Call Me Your No. 1 You-Know-What-Kind-Of Stirrer'

The documentary features exclusive home footage of Loretta Lynn, along with performances and photos, including interviews with her friends and musicians. In the clip below, Sheryl Crow and Jack White speak to her songwriting capability.

“Her lyrics were just really caught your ear and it made you feel like, ‘Oh, she wrote that for me.’” says Crow. “She was so masterful at that: writing really catchy pop songs that were country songs.”

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Jack White adds, “She’s got her own style of writing because she writes backwards. She sort of writes with a double chorus, there isn’t one chorus, per se, when you listen to her songs. There are two choruses, she starts with the second one and then comes back the first part of the chorus and then goes back and starts writing the verses and the story to get to it.”

Reba McEntire chimes in, too, sharing her favorite Loretta Lynn song. McEntire admits that she sings “If You’re Not Gone Too Long” as a warm-up every night before hitting the stage.

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Loretta Lynn’s much anticipated album Full Circle will also be released the same day on Legacy Recordings. Loretta Lynn: Still A Mountain Girl premieres on March 4 at 9 p.m. ET on PBS. Watch the clip below.