Among the Front Range's mamba-mad masses, Cabaret Diosa has become as much a part of the Halloween tradition as checking youngsters' Milky Ways for wayward razor blades. The Boulder-based neo-Latin ensemble always folds a hearty dose of theater into its live shows, which are designed to incite audiences to sing, to swoon and to shake their body parts in ways unseen in normal life. "Circus Macabre," the title of this year's Halloween extravaganza, takes place on Saturday, October 27, at the Boulder Theater, where Cabaret will be joined by contortionists, chainsaw jugglers, costumed characters and spooky sideshow freaks of all persuasions (as well a the Vau de Vire Society and Samba Dende). If this sounds like a lot to take, try Cabaret's more stripped-down performance at the Bluebird on Friday, October 26. Whichever treat you choose, expect plenty of tricks to be thrown in.