Just in case you don’t think that Mungo Jerry are quite cool enough to make a point, here are the utterly unimpeachable (and seriously alright) The Who.
It is a very old video in which Roger Daltrey demonstrates that he once subscribed to the John Entwistle theory of stage presence. This, of course, was before Roger signed up for the Charles Atlas body building course (and you know I think he looks a lot better now, but then I never did go for mods).