Country music has produced countless brother acts, but the Hagers offered a new twist: They were identical twins. Best known for their long stint on the TV show Hee Haw, the Hager Twins (as they were sometimes billed) were talented vocalists who could reliably deliver superb close harmonies, and their body of work ranged from straight-ahead Bakersfield country (no surprise, since they were mentored by Buck Owens) to energetic country-rock, much of it with a playful sense of humor enlivened by their youthful energy. Their best and best-known recordings were cut during their yea...