Country singer Jim Hager, who rose to fame as one of the Hager twins on country variety TV show Hee Haw, has passed away at the age of 66 in Nashville, Tennessee.

Hager was at a coffee shop when he collapsed Thursday, Sam Lovullo said. He said he had been told that by Jon Hager, the surviving twin. Vanderbilt University Medical Center, where he had been taken, gave no details on the cause of death.

The twins, who were also guitarists and drummers, rose to national fame as original cast members of the TV show in 1969. With its mixture of music and country-flavored humor, the show was a huge hit.

Condolences to Jon and the Hager family!