He may not be able to hit the road, yet, but he’s still able belt’em out ?Greg?

Brian Johnson can be heard making a guest appearance on the Greg Billings Band’s latest album. He recorded Old Friends Don’t Come Easy for Boom! Boom! All Night! 

Johnson was forced to bow out of AC/DC in March after doctors warned him he faced total hearing loss if he continued.

Johnson, who’d been with the Aussie giants for 26 years, said at the time: “My entire focus is to continue medical treatment to improve my hearing. I am hoping that in time my hearing will improve and allow me to return to live concert performances. While the outcome is uncertain, my attitude is optimistic.”