From my posting history, I think everyone realizes that I have a great enjoyment of rock music and its history.
Still, it can not be understated that rock and roll post 1965 or so, and the associated counterculture did more to move this country leftward than any other set of events. There are a multitude of main stream rockers like Jagger, Neil Young, Springsteen, Jackson Browne.....and many others who feel that their 1960's hippy-dom is still relevant.