Foo Fighters, Garbage and Greta Van Fleet explain why Cal Jam 18 is so awesome

When the Foo Fighters throw a party they throw a big one.
Last year’s inaugural Cal Jam 17, which was loosely modeled after the California Jam festivals that took place in the ’70s, was a monster day of rock music and fun that featured a line-up of top-notch bands that fit the Foos’ golden rule for being on the bill: “You must have drums and you must have guitars,” Foo Fighters guitarist Chris Shiflett said during a recent phone interview.
Cal Jam 18 will take