RAVEN HALLOWEEN COSTUME BALL In its 14th year, Raven (a Dyke Night production) is featuring a costume contest for the ladies (three winners will be crowned by the end of the night, including $100 cash for first prize), free tarot readings, and a Svedka photo booth. DJ Susan Esthera will be churning out a mix of Top 40, pop, and hip-hop. Friday, 9 p.m. 21+. Tickets: $10. Milky Way, 284 Amory St., Boston. 617-524-6060, www.milkywayjp.com
HALLOWEEN FOR HOPE DJs, dancing, prize drawings, and costume contests for best group, most creative, and creepiest combine for an evening that’s scary fun. Tickets include two drinks, hors d’oeuvres, and airbrush tattoos. Feel good this Halloween — proceeds from the event benefit the Ellie Fund, a local nonprofit fighting breast cancer. Friday, 9 p.m. 21+. Tickets: $40. The Living Room, 101 Atlantic Ave., Boston. 617-723-5101, www.thelivingroomboston.com
LITTLE SWEET SHOP OF HORRORS Good Life’s third annual Haunted House week features a host of ghoulish events, but comes to a head on Saturday for this costume contest. Venture upstairs for hip-hop, R&B, and Top 40 with DJs Goulet and Thaddeus Jeffries, or head downstairs for house and techno with DJs Sinden, Mr. McNeill, and Charles Mazzola. Saturday, 9:30 p.m. 21+. Tickets: $10. Good Life, 28 Kingston St., Boston. 617-451-2622, www.goodlifebar.com
THE 7 DEADLY SINS Between four DJs and seven sins, this Halloween bash is sure to please. At the very least, the $500 cash prize for best costume will give you something to scream about. DJs Alemo, Scrap, Miss Jade, and Alkea will be spinning Top 40, Latin, house, and mashups. Saturday, 10 p.m. 21+. Tickets: $20. Naga, 450 Mass. Ave., Cambridge. 617-201-5920, www.nagacambridge.com
GREATEST BAR HAUNTED HOUSE IV The bar’s frightening transformation features four floors of terror; enter The Crypt on the first floor, creep through The Terrace on the second floor, escape The Keepers Room on the third floor, and enter The Haunted Attic on the fourth floor — if you dare. Costumes encouraged. Sounds by Breeazy. Saturday, 9 p.m. 21+. Tickets: $20. Greatest Bar, 262 Friend St., Boston. 617-367-0544, www.thegreatestbar.com
ROYALE’S HALLOWEEN COSTUME PARTY This “Wizard of Oz”-themed evening will be filled with music (courtesy of Braun Dapper and Brek.One), dancing, and $5,000 in cash and prizes for best costume. Costumes are required for entry, so the night will be scarily festive. Saturday, 10 p.m. Tickets: $25. 21+. Royale, 279 Tremont St., Boston. 617-338-7699, www.royaleboston.com
CHANDLER STREET HALLOWEEN PARTY Bring the family to this annual festival (sponsored by Tadpole, Appleton Cafe, and the Ellis South End Neighborhood Association) for music, food, prizes, and face painting. Whether you stop by for the magician, balloon animals, or the bounce house, be sure to stay until the end for trick-or-treating. Sunday, 4 p.m. Free. Tadpole, 58 Clarendon St., Boston. 617-778-1788, www.shoptadpole.com
THE PILL HALLOWEEN SHOW This year, The Pill takes over Great Scott for its 10th annual Halloween Show, where local bands dress up as other performers. This year features the Luxury as Oasis, the New Highway Hymnal as The Stooges, Color Channel as LCD Soundsystem, and Ruby Ridge as The Knife. Next Wednesday, 9 p.m. 18+. Tickets: $10. Great Scott, 1222 Commonwealth Ave., Allston. 617-566-9014, www.greatscottboston.comJessica Teich can be reached at email@example.com.