I hope he still has a voice. That's always a potential problem with older singers.
I took my parents to see Frank Sinatra when he was about 75 and I regretted spending the money, at least for my ticket. My parents dated to Frank Sinatra and they heard what they heard when they were in their teens. *I* heard a drunk 75-year-old (highball glass full of Scotch never out of his hand) who couldn't sing worth crap and pretty much just talked lyrics to a beat, and I would have been happier at home with CDs from his heyday.
Someday my kid probably will be saying the same thing about Duran Duran when I drag him to a concert when they're 60.
I hope you enjoy it, but I hope you aren't disappointed, too.
Candy