Butler County Community CollegeThe annual Holiday Pops concert by the Pittsburgh Philharmonic will be at 8 p.m. Dec. 11 in the Succop Theater. Tickets are $15Call the theater box office from 10 a.m. to 2 p.m. Mondays through Fridays at 724-284-8505 or visit bc3.edu/Succop-theater.

Slippery Rock University• Opera Theatre students will present “The Old Man and the Thief” at 7:30 p.m. Dec. 2 and Dec. 7 in Swope Recital Hall. The storyline explores cultural hypocrisy.Tickets are $3 for SRU students and $5 for general admission, available at the door.Westminster College• Westminster’s Celebrity Series will present tenor David Phelps performing Christmas songs from both past and present at 7:30 p.m. Dec. 14 in Orr Auditorium. Tickets start at $39. Send e-mail to gibg@westminster.edu or call 724-946-7354.• Westminster’s planetarium is presenting various shows in December. Admission is free but registration is required at www.westminster.edu/planetarium or by calling 724-946-7827.“One World One Sky: Big Bird’s Adventure,” suitable for younger audiences, will be shown at 3:30 p.m. Dec. 5.“Let it Snow: Holiday Music Magic,” recommended for all ages, will be shown at 5 and 8 p.m. Dec. 5 and 12.“Mystery of the Christmas Star,” recommended for ages 8 and older, will be shown at 6:30 p.m. Dec. 5 and 12.Rooftop stargazing will follow each show except “Big Bird’s Adventure,” weather permitting.