Point is, Cook was on last night's episode of The Late Show With David Letterman. Letterman himself says he's a fan of Apron Strings and finds Cook's personality especially endearing, and it's plain to see why. There's no performance here, but in her chat with Letterman, Cook talks about her moonshiner father and his prison band, growing up as a hillbilly and the definition of "outlaw country." You can stream the full episode via the CBS website, though that link may expire before too long. Also, the CBS video player kind of sucks. So prepare for that.