Iggy gave a good show. Little Richard and James Brown were energetic, but I wouldn't have gone to see them. Same for Jerry Lee Lewis. Elton in his prime was a frenetic little poof who could really move around on that stage. Pat Benatar had some pep. And ol' Mick can still move like a flyweight and strut with the best of 'em.
But those guys make my eyebrows hurt with all their jumpin' around. I say "Just sing and play yer guitar. Sit on a stool, stand, whatever, but try to be still so as not to spoil the mellow moment."