Cal Jam

Foo Fighters are back to close out Cal Jam, and they’re bringing Iggy Pop, Tenacious D, Garbage, Greta Van Fleet and Silversun Pickups along with them for the rock-focused fest. You’ll find other familiar festival staples at Glen Helen Regional Park—carnival rides and games, a vendor village—alongside some more unique touches, like twin waterslides, a mobile recording studio and the Foo Fighters Rock ’n’ Roll Museum. The event borrows its name from California Jam, a 1974 fest that featured in Deep Purple and ELP in nearby Ontario.