Sad news, knew his health was deteriorating when he retired from touring late last year. It is now revealed that he had ALS.
musicrow.com
Probably known best for his lead on their biggest hit "Elvira" this is probably my favorite song he sang lead on and a fitting tribute now as well.
Edit: embedding of the video above is disabled so you will have to get to it separately. Here's a different performance of the same song

Oak Ridge Boy Joe Bonsall Passes At Age 76 [Full Obituary]
Joe Bonsall, the high-energy tenor singer of The Oak Ridge Boys, died yesterday (July 9). As a [...]

Probably known best for his lead on their biggest hit "Elvira" this is probably my favorite song he sang lead on and a fitting tribute now as well.
Edit: embedding of the video above is disabled so you will have to get to it separately. Here's a different performance of the same song