TUESDAY, OCT. 31

Kesha: The singer, songwriter, rapper and activist is back in business, on tour for the first time since 2013, with her album “Rainbow.” [8 p.m., Masonic, 1111 California St., S.F.]

Bayview Opera House Haunted House: The free attraction is one stop along the neighborhood’s trick-or-treat trail, which is among community Halloween activities including a costume contest, performances, mask making and more. [5 to 9 p.m., 4705 Third St., S.F.]

Halloween Costume Contest & Pet Stroll: The Fillmore Merchants Association and SPCA invite trick-or-treaters to show off their outfits in stores and on the street, then join the costume competition (for pets and kids); prizes will be awarded. [6:30 to 8 p.m., SF SPCA, 2343 Fillmore St., S.F.]

John Green: The best-selling author of “The Fault in Our Stars” talks about his new book “Turtles All the Way Down” in a ticketed event that includes music and a guest appearance by Green’s brother Hank. [8 p.m., Curran theater, 455 Geary St., S.F.]

Israel Philharmonic Orchestra: San Francisco Symphony’s Great Performers series hosts Zubin Mehta leading the acclaimed band in Amit Poznansky’s “Footnote,” Mozart’s Symphony No. 36, “Linz”; and Schubert’s Symphony in C major. [8 p.m., Davies Symphony Hall, 201 Van Ness Ave., S.F.]

The Black Heart Procession: The “dark and brooding” indie rock band from San Diego led by singer-guitarist Pall Jenkins and multi-instrumentalist Tobias Nathaniel is marking its 20th anniversary. [8 p.m., Swedish American Hall, 2174 Market St., S.F.]

The Craft: Andrew Fleming’s 1996 cult favorite, a supernatural horror flick with Robin Tunney, Fairuza Balk, Neve Campbell, and Rachel True, screens in a Halloween party presentation. [7 p.m., Alamo Drafthouse, 2550 Mission St., S.F.]

Lisa E. Davis: The author discusses her book “Undercover Girl: The Lesbian Informant Who Helped the FBI Bring Down the Communist Party,” which details the story of Angela Calomiris, a New York photographer who spied on the politically active New York Photo League in the 1930s-40s. [6 p.m., LGBTQIA Center, Main Library, 100 Larkin St., S.F.]

WEDNESDAY, NOV. 1

Tropical Breeze: The San Mateo County Arts Commission exhibit of several dozen tropical-themed paintings by local artist and musician PaulaClaudine Hobson-Coard, which runs through Jan. 5, opens. [9 a.m. to 5 p.m., Hall of Justice, Community Gallery (lower level), 400 County Center Drive, Redwood City]

Neurologist Oliver Sacks-Celebrating his Life and Work: Bill Hayes, New York Times writer and photographer; Steve Silberman, science writer; and Victoria Sweet, professor of medicine at UC San Francisco, discuss the groundbreaking scientist’s life and work. [6:30 p.m., Commonwealth Club, 110 The Embarcadero, S.F.]

E. Lockhart: The author of “We Were Liars” speaks about her new novel “Genuine Fraud” in a Not Your Mother’s Book Club talk with Julie Buxbaum, whose new book is “What to Say Next”; Jandy Nelson, author of “I’ll Give You the Sun,” moderates. [7 p.m., Books, Inc. Opera Plaza, 601 Van Ness Ave., S.F.]

Toni Marie Palmertree: The soprano, a San Francisco Opera Adler fellow, appears with pianist Ronny Michael Greenberg in “Dramatic Tales,” a program of songs by Kurt Weill, William Bolcom, Jake Heggie and others. [6:30 p.m., Hotel Rex, 562 Sutter St., S.F.]

ArtWorlds-Mexico, Día de los Muertos: The free, family-oriented Day of the Dead celebration includes altars by local artists, music from Mariachi Tierra Linda and traditional Mexican cuisine. [4 to 7 p.m., Tateuchi Hall, Mohr Gallery, Community School of Music and Arts, 230 San Antonio Circle, Mountain View]

Rittz: The rapper from Georgia, promoting his 2017 album “Last Call,” headlines a show with Sam Lachow and Eric Biddines. [8 p.m., Cornerstone, 2367 Shattuck Ave., Berkeley]

Safeway Holiday Ice Rink: The Union Square attraction presented by Alaska Airlines, celebrating 10 years, opens its season of daily skating, which runs through Jan. 15. [10 a.m. to 11:30 p.m. (sessions every two hours), 333 Post St., S.F.]

Royal Trux: The unpredictable 1990s underground band (which mixes punk, noise, metal, jazz, blues, Southern rock and more) is promoting its 2017 release “Platinum Tips + Ice Cream,” a compilation of live music from 21st century reunion concerts. [9 p.m., Chapel, 777 Valencia St., S.F.]
Bayview Opera House Haunted HouseBlack Heart ProcessionCalendarFillmore Halloween Pet StrollIsrael Philharmonic OrchestraJohn GreenKeshaLisa E. DavisThe CraftTropical Breeze