Last night's Kings Dock crowd was of a certain age, as the saying goes, and it's not very often these days that, at the age of 38, I feel like a youngster when I go to see a band.
So was it Simple Minds' energetic rock that put a spring in my step, or just the general decrepitude around me?
Well, a bit of both, to be honest.
There's no doubting that Simple Minds 2003-style amounts to more than a 1980s nostalgia act.
They've carried on releasing new material since their heyday and there's real passion and belief apparent in their stage show.
Kerr is as lithe and athletic as ever, constantly bouncing on the balls of his feet like a centre-forward waiting for a corner to come swinging in.
That now and again his dancing has more in common with the Ministry of Silly Walks than the Ministry of Sound doesn't matter at all.
He's a showman, pure and simple, who knows how to work a crowd and get them on their feet.
Some of that work had already been done for him by the warm-up act. Local heroes China Crisis enjoyed the warmest reception I've ever seen given to a support band.
It took Simple Minds some time to hit their stride, but a stirring version of Ghost Dancing, mixed with Gloria, was worth waiting for.
All the favourites followed - Don't You Forget About Me, Waterfront (appropriately chosen for the encore ), Glittering Prize - plus songs heard less often like East At Easter and Love Song.
The only problem was that, for me, stadium rock doesn't quite work in a big tent. From my seat near the side of the stage, the sound mix was distorted, with the band's trademark keyboard and guitar sound, plus much of the light and shade in Kerr's voice, lost in a mid-range cacophony.
Further back, the mix was much sharper but too loud. But this won't have worried the appreciative crowd too much.
