“The RockSoberFest music festival, launched two years ago by Marin County producer/theater director Jeffrey Trotter, is coming to Petaluma’s fairgrounds on Saturday, Sept. 28. Described by Trotter as Northern California’s largest “fun and sober” music festival, the event was championed by the late Stefanie Keys, who was slotted to headline the Petaluma event, before passing away in July after a battle with cancer.” INFO: https://www.petaluma360.com/entertainment/10055057-181/good-clean-fun-at-petalumas