Founding Member of Zac Brown Band Diagnosed with ALS

That's after he experienced balance issues and stiffness in his hands.

Zac Brown Band founding member John Driskell Hopkins revealed his ALS diagnosis. He shared the news as he stood alongside his bandmates during a short video on their YouTube account. The 51 year-old multi-instrumentalist and bass player said he was checked out by a neurologist after balance issues and stiffness in his hands.