"Arkansas Farmboy" from Glen Campbell's final album, Adios, is a biographical tune about Campbell's early life. Readers can press play below to hear it.

The country icon's longtime friend, songwriter and band member, Carl Jackson, wrote "Arkansas Farmboy." Inspired by a story about Campbell's grandfather teaching him to play the song "In the Pines" on "a $5 guitar," Jackson wrote the song on an overseas flight.

"He always loved the song, which I was proud of, because it was about him," Jackson says in an interview with Billboard. "It means the world for me to hear him sing these lyrics. I really believe it describes him: He’s the Arkansas Farmboy. He was comfortable in being that, but also meeting kings, queens and presidents. Wherever he was, he was just Glen Campbell."

"Arkansas Farmboy" is a gently strolling waltz through Campbell's childhood, during which he grew up as part of a large farming family in Arkansas. That story about his grandfather is in there, too: "I recall how granddaddy held me / And taught me the melody to "In the Pines" / On a $5 guitar that led to a fortune / I'd trade just to go back in time," Campbell sings.

"I really had an incredible childhood: 12 kids, no electricity, no running water; it was back in the sticks," Campbell says in a YouTube video. "I wouldn't change a thing about growing up, if I had it to do over. If I did, I wouldn't be here now."

The sentimental harmonies of "Arkansas Farmboy" follow same emotional thread of the other songs from Adios. The album is set for release on June 9.

Listen to Glen Campbell's "Arkansas Farmboy"

Glen Campbell Through the Years