Charli XCX & Troye Sivan, Chuck Palahniuk, and More by EverOut Staff It goes without saying that October is dominated by Halloween events—Portland takes the season of ghouls and gourds very seriously—but it's also filled with concerts, festivals, food & drink events, and tons more. As we do every month, we've compiled the biggest events you need to know about in every genre, from Charli XCX & Troye Sivan Present: Sweat to Kehlani's CRASH WORLD TOUR, from Amy Tan to Chuck Palahniuk, and from the Portland Marathon to the West Coast Giant Pumpkin Regatta. COMEDY The Aces present Spirit of HalloweenThe Aces' latest sketch comedy show celebrates the duo's nuanced, physical technique and promises to "take horror and hilarity to new heights." Audiences describe local laughers Shelley McLendon and Michael Fetters' long-lasting act as "comedy for smart people," revealed through their sorta-contemplative, sorta-wacky style. If you want to catch up, grab tickets to the comedy creep show early—The Aces' performances tend to sell out. LINDSAY COSTELLOSiren Theater, Boise (Oct 18–Nov 2)