For nearly a decade, west Sonoma County’s biggest Halloween party has been the Cirque du Sebastopol, and this year’s 9th annual event is no different. Taking place over two nights, the titillating cabaret-style show features lots of live music, antics and more to celebrate the season. On Friday, Oct. 28, North Bay party monsters El Radio Fantastique and Junk Parlor play live, with the long-running burlesque and variety troupe Cabaret de Caliente heating things up. On Saturday, Oct. 29, experimental electronic producers Pantyraid, funky electro-pop duo Sugarbeats and DJ iNi rock the dance floor at HopMonk Tavern, 230 Petaluma Ave., Sebastopol. 8pm. $15–$20 and up (21 and over). 707.829.7300.