Jack Russell said he is retiring from touring after a recent health diagnosis.

The former frontman for Great White, 63, shared the news on his Facebook page on Wednesday.

“To my fans and friends, It is with my heaviest of hearts that I must announce my retirement from the road,” he wrote. “After a recent diagnosis of Lewy Body Dementia (LBD) and Multiple System Atrophy (MSA) in May 2024, I am unable to perform at the level I desire and at the level you deserve. Words cannot express my gratitude for the many years of memories, love and support. Thank you for letting me live my dreams. You have made my life a wonder. Love, Jack Russell.”

The announcement comes on the heels of the release of Russell’s autobiography, “The True Tale of Mista Bone: A Rock & Roll Narrative,” which was written by the singer and K.L. Doty.

Russell, per Loudwire, performed with Great White from 1981 until 1996. He left the band in 1996 to pursue a solo career. The site said he has returned to perform with Great White on multiple occasions, and also had his own band, Jack Russell’s Great White.

Mark Heim is a reporter for The Alabama Media Group. Follow him on Twitter @Mark_Heim. He can be heard on “The Opening Kickoff” on WNSP-FM 105.5 FM in Mobile or on the free Sound of Mobile App from 6 to 9 a.m. daily.