Friday:
 • Tonight Show host Jay Leno appears at the 92nd Street Y to discuss comedy and his new children's book. Friday night in a room with Jay Leno may be the only thing more depressing than sitting alone in a room watching him during the week. [92Y]
• If it's a bit too early for you to be getting your Halloween drink on (pussy), head to Pioneer Theater's All Night Vampire Movie Marathon. Six films screen tonight — some conventional (Bram Stoker's Dracula), some not (Nicholas Cage's turn as a NYC literary agent-turned-blood-sucking-vampire in 1989's Vampire's Kiss. Sometimes, the jokes write themselves). [flavorpill]
Saturday:
 • A Halloween party for the self-obsessed Cobra Snake set: you and your friends dress up as a gang. Pictures are taken and then projected on the walls. DFA's Tim Sweeney and James F*cking Friedman are among the DJs. All at Supreme Trading in Williamsburg. [flavorpill]
• As if you needed further evidence that Halloween is just an excuse to dress like a slut: Scenic hosts Rated X: The Night of the Living Whore tonight, complete with a hot body competition. [Paper]
Sunday:
 • A bit of culture mixed in to your weekend revelry: Flavorpill notes that Jon Kessler's multimedia exhibition The Palace at 4am at P.S. 1 is a "skeptic's take on EPCOT," where "whirling kinetic sculptures of surveillance cameras and video monitors pull viewers down the rabbit hole of representation, leaving us to find our way out again." We sort of like our blackout holes drunk, thank you. [flavorpill]