I've always thought that most "Country Music" is simply Rock 'n roll with boots on. Alan Jackson's Bluegrass Album does a pretty good job. Here's Blacktop.
Sammy Shelor on banjo, Adam Steffey on mandolin, Tim Crouch on fiddle, Tim Dishman on bass, Rob Ickes on reso-guitar, and Scott Coney on guitar. Ronnie Bowman and Don Rigsby were on hand to provide harmony vocals,