Petaluma’s resident troupe of laidback Deadhead tribute troubadours return to the Big Easy for an evening of long jams, mellow vibes, and your favorite Grateful Dead tunes. 8 p.m. 128 American Alley. No cover. Bigeasypetaluma.com.
PATROLLED BY RADAR
These L.A.-based purveyors of foot-stomping, southern gothic rockabilly have been praised for their Americana-fueled songs that celebrate the quirks and quakes of life. 3 p.m. Lagunitas Brewing Company, 1280- N. McDowell Blvd. No cover. Lagunitas.org
NORTH COAST BALLET’S ‘AT TWILIGHT’
Now celebrating its 36th year, North Coast Ballet (formerly Petaluma Ballet) presents “At Twilight: A Celebration of the Arts,” at the Petaluma Arts Center. NBSC dancers will be performing, and there will also be music by Sonoma Strings and Mystery Pacific Trio, live painting by artist Shannon Abbey, food, wine, and a chance to wander through the Arts Centers new show “Tidal Response.” 6:30 p.m. – 9 p.m. $60. Northcoastballet.org
2008 American Idol winner David Cook comes to the Mystic Theater, with a new look and a new sound, his celebrated country twang now underscored by experimental rhythms and electric blues. The Mystic Theater, 21 Petaluma Blvd. N. 8:30 p.m. $27. Mystictheatre.com
Rolling up in the wake of their latest album ‘Expandable Mandible,’ the deliriously funky-groovy quartet Mangobus are ready to treat Petaluma to a generous slab of sweet, smooth, slightly surreal organ-bass-horn-and-drums instrumentals, with jazzy titles (Doctober, Hipmonks, Funk Yourself) that are as playful and cool as the Mangobus itself. Brewsters Beer Garden, 229 Water St. No cover. Brewstersbeergarden.com.
CASTLE IN THE SKY
Boulevard Cinemas continues its year-long Studio Ghibli-fest with two screenings of the seminal Japanese animation fantasy “Castle in the Sky.” Sunday at 12:55 p.m. (dubbed into English), and Monday at 7 p.m. (subtitled). Cinemawest.com