Butler -- "The Mass of Hope," a Mass in the jazz idiom written by Joe Negri, will be performed by two professional cantors and Butler Intermediate and Senior High School student choirs at 7:30 p.m. Tuesday at Butler Intermediate High School auditorium, 551 Fairground Hill Road. Tickets are $15 for general admission. Proceeds will benefit Butler Memorial Hospital Caring Angel program and the Butler Area School District Golden Tornado Scholastic Foundation. Call 724-284-4716.

Butler -- The Pittsburgh Philharmonic will perform a holiday concert at 8 p.m. Dec. 12 at Butler County Community College Succop Theater. Admission is $18 in advance, $22 at the door and $10 for students. Tickets are available at www.bc3.edu or by calling the Succop Theater box office at 724-284-8505 or toll-free at 1-888-826-2829, ext. 8429.

Richland -- Semifinalist singers from the 2008 Kean Idol competition will reunite to perform a holiday concert at 8 p.m. Dec. 13 at St. Barnabas Health System Kean Theatre, 5847 Meridian Road. Tickets are $14 and will benefit the St. Barnabas Free Care Fund. Call 724-444-5326 or visit www.keantheatre.com.

Slippery Rock -- The vocal harmony group The Four Freshmen will perform at 7:30 p.m. Dec. 6 at Slippery Rock University Miller Auditorium. Tickets are $20 for adults, $18 for children and seniors age 62 and older, and $8 for students. Call 724-738-2091. Optional dinner at The University Club is $24 per person. For dinner reservations, call 724-738-2840.

Mars -- More than 250 crafters will participate in the Mars International Student Association and Mars Area Foundation for Educational Excellence craft show from 10 a.m. to 4 p.m. Saturday at the middle school and high school, Route 228, between Routes 8 and 19. For information, call 724-538-3397.

Butler -- Sing Hosanna! will present "The Sound of Music" at 7:30 p.m. tomorrow and Saturday, and 2 p.m. Sunday, at Butler County Community College Succop Theater. Tickets are $14. Call 724-287-8362.

Ben Avon Heights -- The North Hills Cheerleader Parent Association will hold its annual fashion show from 1 to 4 p.m. Sunday at Shannopin Country Club on Windmere Road. Doors will open at noon with a white elephant sale and gift basket raffle tables. Lunch will be served at 1 p.m. Senior cheerleaders will be modeling clothing from David's Bridal, Forever 21 and Kohls. Tickets are $30 for adults and $15 per child age 12 and younger. For ticket information, contact Ginny Sciulli at 412-487-4828.

Ben Avon Heights -- North Boroughs YMCA, Bellevue, will hold a meet and greet social and fundraiser beginning at 5:30 p.m. Dec. 4 at Shannopin Country Club on Windmere Road. Tickets are $30. Proceeds will benefit the North Boroughs YMCA Community Center senior programming. Reservations due by Nov. 28. Call 412-508-5699 or 412-761-1227.

Butler -- Butler County Community College and Phi Theta Kappa Honor Society will hold a "Locks-Giving" event, to benefit Locks of Love, from 9 a.m. to noon Saturday in the AK Steel Lobby of the Succop Theater on BC3 main campus. Both hair and cash donations will be accepted by the Locks of Love organization to benefit children younger than 18 suffering from long-term hair loss from any medical diagnosis. There is a 10-inch minimum requirement and hair should be clean and dry. Refreshments and music will also be part of the festival. For more information or to RSVP for a haircut, contact Cheryl Cavaliero at 724-287-8711, ext. 8216. Visit www.locksoflove.org.

Ross -- North Hills Community Baptist Church, 7801 Thompson Run Road, will perform the musical "There's No Time Like the Past" at 7 p.m. Saturday and Sunday. Admission is one nonperishable food item to benefit the North Hills Community Outreach Food Pantry. Call 412-366-2262.

Marshall -- Dr. Gina Agostino, chiropractor, will talk about keeping quality of life at 6:30 p.m. Dec. 2 at the township municipal building, 525 Pleasant Hill Road. Free. Registration required by Tuesday. Call 724-935-3090, ext. 115.

Butler -- View a holiday miniature railroad display, among other exhibits, at Butler County Heritage Center, a local history museum at 119 W. New Castle St. Refreshments will be served opening day from noon to 4 p.m. Sunday. Exhibit is also open Nov. 28. Tickets are $5 for adults, $2 for ages 5-17. Call 724-283-8116 or visit www.butlerhistory.com.

Butler -- Butler County Parks and Recreation will hold its annual Light Up Night beginning at 6:30 p.m. Nov. 29 at the Carousel Shelter. Take part in a flashlight candy cane hunt, crafts, refreshments, a visit from Santa Claus and carol singing with praise band Divine Ridge. Cost is $5. Registration required; call 724-284-5383.

Cranberry -- The township will hold Light-Up Night tomorrow at Cranberry municipal center, 2525 Rochester Road. Free festivities begin at 6 p.m. and include music, ornament-making, snacks and special collections for local food and toy drives. Santa and Mrs. Claus will make a brief visit. Visit with Santa and decorate holiday cookies during "Milk and Cookies with Santa," three sessions -- 10 a.m., noon and 2 p.m. -- Dec. 6, 13, and 20 in the Senior/Teen Center in the municipal building. Fee is $9 for residents, $12 for others Call 724-776-4806, ext. 1129, for reservations.

Mars -- Mars Area Public Library, 107 Grand Ave., is seeking entries for its gingerbread house contest through Dec. 1. Prizes will be awarded based on originality, creativity and overall appearance. Divisions are adult, youth and group. Theme this year is Animated Characters. For details, call 724-625-9048.

McCandless -- Memorial Park Church, 8800 Peebles Road, will present the Christmas musical "Come to the Well" at 7:30 p.m. Dec. 5, 6 and 8. Tickets are $10. Families can make Christmas crafts or eat dinner before the Dec. 5 show; contemporary worship will precede the show Dec. 6; and a full meal will precede the Dec. 8 show.Visit www.nhymcc.org or call 41-364-9492.

Butler -- Butler County Symphony Association will hold its 19th annual Holiday Tour of Homes from 10 a.m. to 5 p.m. Saturday. Tickets are $15 presale, $18 the day of the tour. Price includes tour of five private homes and a cookie reception from 11 a.m. to 4 p.m. at Newhaven Court at Clearview, 100 Newhaven Lane. Call 724-283-7263.

Hampton -- Hampton Community Library, 3101 McCully Road, will be closed Wednesday through Nov. 28. The Community Center will close at 5 p.m. Wednesday and reopen Nov. 29.

Richland -- Northern Tier Library, 4015 Dickey Road, will close at 4 p.m. Wednesday for Thanksgiving. The library will be open from 10 a.m. to 4 p.m. Nov. 28. The Pine Center, inside Pine-Richland High School, 700 Warrendale Road, will be closed next Thursday through Dec. 1.

Sewickley -- Girls in grades 3-5 can bring their American Girl dolls for crafts and games from 2 to 2:45 p.m. Sunday at Sewickley Public Library, 500 Thorn St. Children ages 2-5 can meet for an interactive program for Spanish language learning from 12:30 to 1 p.m. Tuesday. Registration is required for these programs. The library will close at 5 p.m. Wednesday through next Thursday for Thanksgiving. For more program information, call 412-741-6920.

Hampton -- The Pennsylvania Professional Employment Network for unemployed and underemployed professionals meets at 9 a.m. Mondays at Hampton Presbyterian Church, 2942 E. Hardies Road. Visit www.papen.us.

Millvale -- Tabor House of Prayer, a ministry of the Sisters of St. Francis at Mount Alvernia, 146 Hawthorne Road, will offer "Advent Awakenings" from 9:30 to 11:30 a.m. Tuesdays, from Dec. 2-23. Each week participants will share in a reading, and reflections that will warm the heart and cheer the spirit as they await this blessed season. Donations will be collected weekly to help the poor. Register by calling 412-821-1149.

Butler -- Families Forever, a Lifesteps program, helps families learn to minimize the effects of divorce and/or custody situations. The next sessions are scheduled: from 4 to 8 p.m. Dec. 3 at Family First Resource Center, 216 N. Washington St., and from 8:30 a.m. to 12:30 p.m. Dec. 6 at Lifesteps, 383 New Castle Road. Registration is $50 for adults, free for children. Visit www.lifesteps.net or call 724-283-1010.

Cranberry -- The Regional Learning Alliance at Cranberry Woods/KnowledgePoint Academy's Writing and Research Center will hold a free resume workshop from 1 to 5 p.m. Dec. 5 in room 2121. Because seats are limited, registration is required. Contact Director Judy Dahlbeck at 724-741-1036 or KPA@theRLA.org. For more seminars and classes, visit www.the RLA.org.

Franklin Park -- Deborah Webb and Mark Muretisch will present "From Fear to Fabulous: The Road to Recovery," the story of one person's survival and another account of support and caring that exemplifies the relationship between the two, at 7 p.m. today at Ingomar United Methodist Church's Community Life Center, 1501 W. Ingomar Road. The program is meant to encourage and inspire anyone dealing with hardship in their life or who is caring for another person struggling on their road to recovery. Free. Call Bonny Hall at 412-327-5177.

McCandless -- University of Pittsburgh Law Professor David Harris, author of two books on racial profiling and a recognized national authority on the subject, will facilitate a discussion of racial profiling at 7 p.m. today at Northland Public Library, 300 Cumberland Road. The discussion, part of the series sponsored by the Greater Pittsburgh Chapter of the American Civil Liberties Union, is free. Readings regarding the issue are available at the ACLU Web site, www.aclupa.org/pittsburgh.

Richland -- Dr. Ditte Karlovits, of Bellevue Pediatrics, will present a discussion on how to promote good nutrition for picky eaters at 7 p.m. Tuesday at Northern Tier Library, 4015 Dickey Road. Registration required; call 724-449-2665.

Cranberry -- The Victory Group, an organization for those struggling with addiction, meets from 7 to 8 p.m. Tuesdays at Victory Family Church, 21150 Route 19. Call 724-453-6200.

McCandless -- Temple Ohav Shalom, 8400 Thompson Run Road, holds a nondenominational bereavement support group meeting from 7 to 9 p.m. every other Monday. Reservations required; call 412-913-0272.