(FOX NEWS) — Guns N’ Roses drummer Matt Sorum said that despite singing at a recent charity concert, Steven Tyler won’t be going on tour again.

“It was a really big moment for him because he hurt himself bad,” Sorum told WBAB radio recently of Tyler’s performance at the Jam for Janie Grammy Awards Viewing Party, which benefits his charity Janie’s Fund, after injuring his larynx last year.

“Now is he going to tour again? No, he’s not, and I explain this to people. Steven cannot put himself under the rigors of doing a full worldwide tour because it’s a lot of pressure and if you’re not a singer you wouldn’t understand what he goes through, but he’s 77 years old, and he’s a perfectionist, and if he doesn’t sing correctly, it bothers him.”