Ever get the feeling that the struggle to get by makes it impossible to have the energy or the time to storm the barricades? That's what American capitalism has achieved in 2018: maximum depression. And that's why Cochran's 1958 song of angst plays on to this day.
As we use the term today, authenticity allows no truth from art, only from artists. It visits art the way one visits a subway station or an airport: to get to somewhere else.