Back in 1967, the Monterey Pop Festival took place at Laguna Seca Raceway outside Monterey, California.  It was the first ever real rock festival, pre-dating even Woodstock. Tens of thousands of rock fans turned up.

Twenty years later, in 1987, Pope John Paul II gave mass to tens of thousands of farmworkers at Laguna Seca Raceway; locally, the event became known in advance as….