MUSIC: Midwestern-based, "retro-styled" rappers, The Cool Kids, who describe themselves as the black Beastie Boys, bring their fresh sound (sponsored by Mountain Dew) to Oakland's New Parish tonight, along with Go Corporate and Young Man. (8 p.m., The New Parish, 579 18th Street, Oakland)

FILM: Strangers Passing, a rare film from 1974 that falls "somewhere between gay porn and art film" and "combines explicit scenes and elements of tenderness (like holding hands and amorous courting)", is set in San Francisco and focuses on two men who meet through a personal ad in the Bay Area Reporter. (7:30 p.m., Yerba Buena Center for the Arts, 701 Mission Street)

TOUR: There are lots of various fun tours popping up all over the city these days, and Invented in San Francisco sounds like the most interesting one yet: "Explore the science behind the creations of some of SF's important imaginators, learn a bit about the neuroscience of creativity, and experiment with your own powers of perception." (5:30 to 8 p.m., Sydney Walton Square, Front and Jackson Streets)