Stairway to Dollywood
Interestingly, if you want to hear Dolly Parton do a wonderful cover of a rock song, check out her version of Collective Soul's "Shine" from 2001's Little Sparrow. "Shine" is a very good song (if you're not sure about that, check out the Holmes Brothers' cover too), but certainly no "Stairway to Heaven." It's hard to believe that she could pour so much of herself into her cover of the former and fall so short in her cover of the latter. Perhaps "Stairway" was just too daunting a task for even an artist of her long experience.