Early rock 'n' roll was about kissing in Dad's sedan. Today stars opine about trade policy. Here's a rock history suitable for C-SPAN as well as MTV.
--By Benjamin Nugent
BOB DYLAN When the master lyricist traded his acoustic guitar for an electric backup band in 1965, he sang to rock fans about the evils of war and the emptiness of consumerism
MARVIN GAYE Sliding harsh indictments of poverty, violence and pollution into silky R.-and-B. grooves, his album What's Going On was Motown's most important comment on social issues and proof that political pop could be soft and sexy...