Ive seen them live several times and they can play like young men for hours—Bruce Dickinson has taken exceptional care of himself and to see him jumping off tiers of speakers at his age while singing is amazing
Here’s a bit more
https://theaviationgeekclub.com/iron-maiden-frontman-bruce-dickinson-declared-raf-group-captain/amp/
The one time you won’t see Bruce playing around is when discussing his piloting. Someone asked if he cut up in the cockpit and made jokes over the intercom and he gave a firm no without the hint of a smile. It’s also why he has the short hair.