Insurrection Ball V4: Impetus Rising is here. In case you missed out on the first three installments, these parties are thrown by local erotic arts collective Sirens of Sin. Husband and wife duo Preya and Waylon found a piece of the downtown nightlife missing when they made the move back to Athens from Tampa—a playful, arousing, industrial piece. Once they teamed up with BeatmatchedHearts’ DJ Incubus, Lexus Luthor and DJ Lisa, the thirst was quenched and the fetish performances were back on. This particular incarnation offers electronic and dark wave music by BeatmatchedHearts and Trey Ehart of deathrock band Entertainment, as well as live performances by guest Foxy Roulette and the lovely Preya. Take note of the awe-inspiring costumes, headdresses and props handmade by Preya and Waylon; it’s time to pull out your boldest outfits and dance. Entry costs $5, and the party starts at 9 p.m.