35 Years Ago: California Jam 2 Takes Place
Bringing together a variety of acts from across the rock and roll spectrum in front of a crowd of more than 300,000, California Jam 2 featured scorching performances from some of the biggest names in '70s rock music. The concert - which took place on March 18, 1978 -- helped to pave the way for all-day festivals to become the routine big-business events they are today.