49. "That's Alright"
Fleetwood Mac have exerted a massive influence on country music, with artists from the Dixie Chicks to Little Big Town covering them. Nicks grew up singing old-time country with her grandfather, and that side is especially present on "That's Alright," a lilting shuffle first recorded as the acoustic "Designs of Love," in the Buckingham Nicks days, then slicked up years later for Mirage. The rootsier alternate take is a gem among the extras on the 2016 reissue of Mirage.