'60s. the music that so many thought too loud, vulgar and somehow dangerous to our morals. rock has not only refused to go away. it has become an institution. ♪ hart was a big deal. because in the decade dominated by a type of rock 'n' roll that rhymes with rock and begins with a "c" but i won't go on further, they were able to play with the guys and succeed on their own terms. >> the stuff from the '60s, that's way too hippy now the we have to up it a notch. ♪ ♪ >> the audience had come to expect a better standard of performance. a better quality of lighting and sound and staging. they have come to expect a show. ♪ we still have time and i still