Well, if Johnny Cash can do a cover of Nine Inch Nails' HURT, why not?
That reminds me, Johnny Cash does do some great covers. My favorite are Devil's Right Hand and Solitary Man.
Yes, he did a really good version of Solitary Man. & I say this as a big Neil Diamond fan.I will admit that listenning to Cash's recordings the last few years before he dies is a bittersweet experience as you can hear the wear & tear in his voice of all he went through.