Kenny Chesney, a Country Music Hall of Famer and longtime Willie friend, fan, and collaborator, talks about Willie’s 1976 cover of “That Lucky Old Sun.” That beautiful, hushed track, which opened the album The Sound in Your Mind, was one of Willie’s first covers from the Great American Songbook, setting the stage for his Stardust triumph two years later...and hearing it now takes Kenny back to an old tour bus, when he was a young artist studying Willie’s singing. From there he gets into the duet the two cut on the song in the mid-2000s—which ended up being a pivotal record for Willie—plus what it was like to produce Willie's 2008 album, Moment of Forever, and the way Willie helped inspire the artistic change that grew Kenny into Billboard’s Top Country Artist of the 21st Century.