Sing Hosanna! will have “A Hosanna! Holiday Celebration” on Saturday, with seatings at noon and 5 p.m. in the Penn Christian Academy auditorium, Airport Road, Penn Township. Entertainment will be a Christmas musical called “Silent Night! Holy Night!” Tickets for the full course meal and the show are $20 for adults and $7 those 10 and younger. Reservations are required. Call 724-287-8362.

Hobnob Theatre Company stages “A Christmas Carol” at 8 p.m. Dec. 21 and 22 at the Succop Theater at Butler County Community College. Tickets are $10 for adults and $5 for students and are available at www.hobnobtheatre.com or at May's Music Shoppe, 247 E. Jefferson St.

Comtra Theatre, Route 19, Cranberry Township, presents “It's a Wonderful Life,” through Dec. 15. Curtain is at 7:30 p.m. Fridays and Saturdays. Tickets are $12. Call 724-591-8727 or 724-591-5383 or visit www.comtraplayers.com.

“Miracle on 34th Street The Musical” will be staged at 7:30 p.m. Friday and Saturday and Dec. 14 and 15 and at 2 p.m. Sunday and Dec. 16 at the Barrow-Civic Theatre, 1223 Liberty St., Franklin. Tickets are $18 for adults, $16 for senior citizens, and $12 for students and children younger than 12. Tickets are available by calling 814-437-3440 or 800-537-7769 or online at www.barrowtheatre.com.

The Conservatory Theatre Company will present “The Crucible” by Arthur Miller from Friday through Dec. 16 in the Rauh Theater, in the Pittsburgh Playhouse, 222 Craft Ave.Tickets are $18 to $20. Call 412-392-8000 or visit www.pittsburghplayhouse.com.Pittsburgh Public Theater hosts “Good People,” through Sunday at the O’Reilly Theater, 621 Penn Ave. Show times are 8 p.m. today and Friday, 2 and 8 p.m. Saturday and 2 p.m. Sunday. Tickets are $23 to $55; students and anyone age 26 and younger with valid ID pays $15.75. Call 412-316-1600 or visit ppt.org.“Flashdance — The Musical,” the stage adaptation of the 1983 film, runs Jan. 1 to 6 at Heinz Hall, 600 Penn Ave. Tickets are $20 to $65. Call 412-392-4900 or visit www.TrustArts.org.CLO Cabaret presents “A Grand Night for Singing,” Broadway’s tribute to Rodgers and Hammerstein, through Jan. 20 at the Cabaret at Theater Square, 655 Penn Ave. Curtain is at 7:30 p.m. Wednesdays, 1 and 7:30 p.m. Thursdays, 7:30 p.m. Fridays, 2 and 7:30 p.m. Saturdays and 2 p.m. Sundays, with some exceptions. Tickets are $34.75 to $44.75 and available by calling 412-456-6666 or visiting www.CLOCabaret.com.