"You know, the guy just wrote beautiful songs," Armstrong said. "When someone goes that honestly straight to the core of who they are, what they're feeling, and was able to kind of put it out there, I don't know, man, it's amazing. I remember hearing it when 'Nevermind' came out and just thinking, we've finally got our Beatles, this era finally got our Beatles, and ever since then it's never happened again. That's what's interesting. I was always thinking maybe the next 10 years. OK, maybe the next 10 years, OK, maybe. ... That was truly the last rock 'n' roll revolution"