Lucky 13: What's scarier than trying to fit thirteen events into this tiny Beat Happenings box? All the freaking Halloween celebrations spooking St. Louis this weekend! Get startlin' on Friday, October 27: The Arch Rival Roller Girls Halloween Party with Maid Rite and the Gentleman Callers at the Way Out Club (2525 South Jefferson Avenue, 314-664-7638; myspace.com/wayoutclub). ... Halloween Costume Party with cash prizes for Best, Weirdest, Worst and Sexiest costumes with music by Tiny Cows at Tin Can Tavern (3157 Morganford Road, 314-865-3003; www.tincantavern.com)... Murder Happens kills with Dead Sexy and Polarized Mind, along with guest DJs Salem and X-Bot at Blueberry Hill (6504 Delmar Boulevard, University City, 314-727-4444; www.blueberryhill.com) ... Melodic Voyage and Vinyl Bitchie will torture the turntables at the Twisted Olive (6608-A Delmar Boulevard, University City; 314-578-5536). Saturday, October 28: Killoween with Gravity Kills, Fragile Porcelain Mice, Ultra Blue and One Lone Car at Pop's (1403 Mississippi Avenue, Sauget, Illinois, 618-274-6720, www.popsrocks.com), 7 p.m. ... School House Halloween Party featuring Javier Mendoza will bring out your inner child with costumes, contests and prizes at Lucas School House (1220 Allen Avenue, 314-621-6565; www.lucasevents.com) ... The Feed CD Release Party and Pre-Halloween Celebration will terrify with Last Fast Action and Wooden Stares at Cicero's (6691 Delmar Boulevard, University City, 314-862-0009; www.ciceros-stl.com), 8:30 p.m. Sunday, October 29: ... And You Will Know Us by the Trail of Dead has a frighteningly free in-store appearance at Vintage Vinyl (6610 Delmar Boulevard, University City, 314-721-4096, www.vintagevinyl.com). Monday, October 30: That 80's Club vs. London Calling pits brats against Brits at Throttle (720 North First Street, 314-241-1000; www.throttlestl.com) at 10 p.m. Tuesday, October 31: Punk Rock Halloween with God Fodder and Beating will bring out the Sid Vicious costumes at Lemp Neighborhood Arts Center (3301 Lemp Avenue, 314-771-1096; www.lemp-arts.org), 8 p.m. ... The Smokin' Halloween Party will spook with a surprise lineup at Off Broadway, 3509 Lemp Avenue, 314-773-3363; www.offbroadwaystl.com), 9 p.m. ... Big Bamou and Funkabilly will rip it up at Broadway Oyster Bar (736 South Broadway, 314-621-8811; www.broadwayoysterbar.com), 9 p.m. ... Rapture Dead Alive Halloween Party with DJ Skeletal will hypnotize at Upstairs Lounge (3131 South Grand Boulevard, 314-773-3388, www.upstairslounge.com), 10 p.m. Phew! I mean, BOO!