learn how you can be prepared at pge.com/beprepared. together, we're building a better california. rock, music that infuriated so many people in the '50s and '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. heart 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 willing to play with the guys and succeed on their terms. >> the stuff from the '60s, that's way too hippy now the we have to up it a notch. ♪ ♪