Don Henley has shared another new track from his upcoming country album, Cass County. The song, a cover of the Louvin Brothers’ “When I Stop Dreaming,” is a duet with Dolly Parton.

"I think we had about two or three takes with Dolly," Henley boasts to USA Today of his duet partner. "She comes in and goes, 'I know this song; I used to do it with Porter [Wagoner].' She sings it once, and she goes, 'Mmm, it's in a pretty high key for me. I guess I'll just have to rare back and get it.' And, boy, she did. What a voice that girl has, coming out of such a small person."

Henley, who has also revealed the track "That Old Flame," which features Martina McBride, collaborated with an eclectic list of artists, including Merle Haggard, Alison Krauss, Miranda LambertAshley Monroe, Lucinda WilliamsTrisha Yearwood and rocker Mick Jagger, for Cass County.

“I chose people that I respect musically,” Henley says. “People whose work I respect, whose voices I like, who are all great, authentic singers who can really sing when called upon to sing. Some of them are friends of mine, and some of them I had never met before. I was flattered and flabbergasted when all of them said, ‘Yeah.’”

The founding member of the Eagles says that recording Cass County was one of the best musical experiences he has ever had.

“The great majority [of recording] was done right here in Nashville, and I can truthfully say that I enjoyed making this record more than any record I’ve made in my career,” Henley says. “And a lot of the reason is because of the people who participated."

Cass County will be released on Sept. 25. It is currently available for pre-order on Amazon.

Listen to Don Henley and Dolly Parton, "When I Stop Dreaming":

How Old Do These Country Stars Look?