Bellevue -- The Creative TreeHouse, 517 Lincoln Ave. will be host to Good VS Evil, a photographic exhibition, from 8 p.m. to midnight Saturday. Tickets are $5. Ages 18 and older; BYOB with proper identification. Music provided by Christian Trich, Uncle Scratch' Gospel Revival and others. Visit www.creativetreehousepgh.com.

Butler -- The Blazing Star Choral Society will perform R. Vaughn Williams' "Dona Nobis Pacem" and a selection of spirituals at 7 p.m. Sunday at First Methodist Church, McKean Street. Tickets are $10. Call 724-282-0660.

Marshall -- Local rock band No Excuse will perform from 7 to 10 p.m. Wednesday at the Elias Fry Barn, Knob Hill Park. Free. Bring a lawn chair or blanket.

Richland -- Lee Alverson's Legends of Rock & Roll will be presented at 8 p.m. Saturday at Kean Theatre in The Washington Place, 5847 Meridian Road. Optional dinner at Atria's Restaurant & Tavern begins at 6 p.m. Tickets are $32 for show only, $50 for dinner and show. Call 724-444-5326 for reservations.

Portersville -- The Northwest Pennsylvania Steam Engine and Old Equipment Association will be host to Spring Gas-Up, a steam and antique power show, from 8 a.m. to 5 p.m. Saturday and Sunday at the Portersville Show Grounds, Route 19. The show will feature a variety of old operating vehicles, old tractor pulls, train rides, flea market, blacksmith shop, demonstrations, contests and more. Admission is $2 for adults; children admitted free. Call 724-794-1091 or visit portersvillesteamshow.homestead.com.

Zelienople -- The Horse Trading Days Arts & Music Festival is accepting crafters, artists and vendors for the July 17-19 event. Call 724-513-4098 or visit www.horsetradingdays.info.

Cranberry -- Family Behavioral Services will hold a family fun night from 6 to 8:30 p.m. tomorrow at Haine Elementary School, 1516 Haine School Road, to raise money for autism research. Activities will include raffles, auctions, children's games and activities, refreshments and more. Tickets are $7; children age 3 and younger admitted free. Proceeds go toward the service's H.O.P.E. for Tomorrow Team in the Walk NOW for Autism Research. Call 724-772-2677.

Hampton -- Northwood Reality Services Hampton Office, 4100 Route 8 at Harts Run Road, will hold a Pink Tag sale from 9 a.m. to 1 p.m. Saturday. Sale of new and used items will benefit the Susan Komen Breast Cancer Fund. To donate items, call 412-487-3200.

Hampton -- A fund-raising car wash will take place from 10 a.m. to 8 p.m. Saturday in the parking lot of North Hills Community Outreach, 1975 Ferguson Road. From 5 to 8 p.m. the same day, St. Paul's United Methodist Church, located behind Community Outreach, will hold a ham dinner. Tickets are $8 for adults, $4 for children 9 and younger. For tickets, call George Wolford at 412-487-7610. Both events will benefit the medical fund of BethAnne Lankey, a 41-year-old Ross woman who is suffering from a rare blood clotting disorder.

Richland -- Trinity Evangelical Lutheran Church, 3832 Gibsonia Road, will hold a recital at 7 p.m. Sunday. A dessertery will be held at 6 p.m. Donations will be accepted to benefit the church parking lot repair. Call 724-443-8110.

Richland/West Deer -- St. Barnabas Charitable Foundation will hold a Pennies for Patients poker run and car cruise Sunday. Participants will visit five hosts along a 27-mile route, receiving a playing card at each stop; winning hands will receive prizes at the last stop, La Casa Narcisi Winery, Route 910, West Deer. Car cruise, entertainment and refreshments available from 11 a.m. and 2 p.m. at the winery. Registration fee is $10 a hand. Proceeds benefit St. Barnabas' Free Care Fund. To register, call 724-444-5521.

Butler -- Penn State Master Gardeners will hold a spring garden market from 9 a.m. to 4 p.m. Saturday at Succop Conservancy, 185 W. Airport Road. Available will be garden vendors, crafters, a plant sale and a silent auction. Enjoy great food, the conservancy grounds and tour the Marcraig House. Free talks on bees begins at 11 a.m., butterflies at noon, and birds at 1 p.m. Free admission and parking. Call 724-287-4761 or visit butler.extension.psu.edu/mg.

McCandless -- Longvue Acres Garden Club will hold a perennial plant sale from 9 a.m. to noon Saturday in the parking lot of Northmont Presbyterian Church, 8169 Perry Highway.

Richland -- Northern Tier Library will hold a plant and garden sale from 10 a.m. to 8 p.m. next Thursday and 10 a.m. to 4 p.m. May 23 in the library parking lot, 4015 Dickey Road. The sale of herbs, annuals, hanging baskets and more will benefit the library. Preorders are due Saturday. The library will hold a garden party at 7 p.m. Wednesday. Attendees are asked to bring three perennials. Adults only; registration required. Call 724-449-2665.

Sewickley Heights -- Join TUDI Mechanical Systems as they raise money for "Heat For the Needy" with this annual golf classic June 30 at Sewickley Heights Golf Club, 126 Backbone Road. In the program, TUDI employees and their families volunteer time to install new furnaces in homes of needy families, at no cost to recipients. The fee is $300 for individual golfers and $1,200 for foursomes. Contact heatfortheneedy@tudi.com.

West View -- Register for the Northern Allegheny County Chamber of Commerce golf outing June 6 at Highland Country Club, 450 Highland Ave. Registration and lunch at 11 a.m. Shotgun start, scramble format, at 12:30 p.m. Cash bar and dinner at 5:30 p.m. Cost is $140 per person, $520 for foursomes. To register, call 724-924-9700.

Cranberry -- Information on seniors and asthma will be presented during UPMC Passavant's seminar, Commitment to a Healthy Lifestyle, at 12:30 p.m. Wednesday in Cranberry municipal building, 2525 Rochester Road. Free. Call Jean Wagner at 412-367-6643.

Cranberry -- The Women's Health Department of Allegheny General Hospital will present a program on six health warning signs you should not ignore at 6:30 p.m. Wednesday at Cranberry Public Library, 2525 Rochester Road. Free. Register by calling 724-776-9100.

McCandless -- UPMC Passavant's Extending the Care series will present a seminar on living with arthritis from 9 to 11 a.m. Tuesday at Kearns Spirituality Center, 9000 Babcock Blvd. Free. Registration required. Call 412-367-6643.

McCandless/Cranberry -- UPMC Passavant will host a diabetes education series on disease management using American Diabetes Association techniques. Four-week classes will meet from 1 to 3:30 p.m. Wednesdays, June 4 through 25, in Assembly Hall, 9100 Babcock Blvd. The same series will be offered from 6 to 8:30 p.m. Tuesdays, June 3 through 24, at UPMC Passavant Cranberry second-floor conference room, 1 St. Francis Way. Fees are reimbursable by most insurance plans. To register, call 412-367-6887.

Mars -- Donations for the Mars Area Public Library's summer used book sale are now being accepted. Needed are hardbacks, paperbacks, children's books, audiobooks, movies and music CD's. Magazines, textbooks, and Reader's Digest Condensed Books cannot be used. Sale dates are June 17-21. Call 724-625-9048.

McCandless -- Northland Public Library, 300 Cumberland Road, will be closed tomorrow for a staff in-service development day.

Pittsburgh -- The St. Margaret Fitness Classic 5K run/walk will begin at 8:30 a.m. Sunday. The run will benefit the Community Trails Project. Runners/walkers may register at www.stmargaretfoundation.org, or call the race hotline at 412-784-5169. Race-day registration begins at 7:30 a.m.

Aspinwall -- The Aspinwall Chancel Choir will present a free concert at 3 p.m. Sunday at Aspinwall Presbyterian Church, Center Avenue at Third Street. Call 412-781-2884.

Zelienople -- The Rev. Charles B. Bergman will celebrate the 50th anniversary of his priesthood at a 10:30 a.m. Mass Saturday St. Gregory Parish, 2 W. Beaver St. A lunch reception will follow in the Bergman Event Center. Call 724-452-7245.

Harrison -- Community Library of Allegheny Valley Harrison branch, 1522 Broadview Blvd., Natrona Heights, will hold a free program on getting the most from the economic stimulus check at 7 p.m. Tuesday. To register, call 724-226-3491.

Marshall -- UPMC Children's Hospital will hold a seminar, Alone at Home, from 6:30 to 8:30 p.m. Tuesday at the municipal building, lower level, 525 Pleasant Hill Road. Children ages 10 and older, with their parents, will explore emotional readiness, appropriate behaviors and a family safety plan for children home alone. Fee is $12 for residents, $14 for others. Register by calling 412-692-7105.

McCandless -- Marlene Parrish, of Slow Food Pittsburgh, will speak on the revival of the kitchen as a center of pleasure, culture and community, at 7 p.m. next Thursday at Northland Public Library, 300 Cumberland Road. Register by calling 412-366-8100, ext. 113.

O'Hara -- Lauri Ann West Memorial Library, 1220 Powers Run Road, will hold a seminar, College Admissions 101, at 7 p.m. Monday. Topics will include the basis of college admission decisions, SAT information, myths about the admission process, financial aid, scholarship information and more. Register by calling 412-828-9520, ext. 15.

Harmony -- Harmony National Historic Landmark District and Butler County Tourism and Convention Bureau will be host to "Come Home to Harmony" from 6 to 9 p.m. May 29 in downtown Harmony. Watch artisans demonstrate pioneer skills, visit shops, sample food and more. Cost is $15. Reservations required by Thursday. Call 724-234-4619.

Cranberry -- Seneca Valley School District will hold its annual, free bike safety rodeo from 2 to 4 p.m. Sunday, rain or shine, in the parking lot in front of UPMC Passsavant's Cranberry Medical Offices East building.

Butler -- Lifesteps' Alzheimer's support group will meet from 3 to 4:30 p.m. Tuesday at the Butler center, 383 New Castle Road in the Geriatrics Department. Call 724-283-1010, ext. 233.