Comtra Theatre, Route 19 in Cranberry Township, presents "Swingtime Canteen" opening Friday and continuing through Aug. 7. Based on real life USO show from 1944, a fading Hollywood star heads to London with her gal pals to put on a show for the troops. The all-female cast sings hits of the 1940s. Curtain is at 7:30 p.m. Fridays and Saturdays. Tickets are $15. Call 724-773-9896.

<B>The Red Barn Players</B> are staging the comedy "The Butler Did It," at 8 p.m. daily through Saturday at the Red Barn Theatre on Route 228, Franklin Township, Beaver County. This spoof of English mysteries finds Miss Maple, a society dowager noted for her imaginative weekend parties, awaiting a group of detective writers invited to eerie Ravenswood Manor, where they are to assume the personalities of their fictional characters. Tickets are $10. Call 724-773-7150 for reservations.<B>Freeport Theatre Festival</B>, celebrating its 21st season, is bringing back Rennick Steele's "Cauldron of Steel," a historical drama celebrating the founding of Vandergrift, Westmoreland County. Performances are set for 8 p.m. Friday, Saturday and Sunday. Tickets are $10 and $12. Parking is free. A pie social to benefit the Allegheny Township Historical Society is planned for Saturday. The theater is at 2498 White Cloud Road, two miles southeast of Freeport, off Route 356. Call 724-295-1934. Visit www.freeporttheatrefestival.org.<B>Kean Theatre</B>, 5847 Meridian Road, Gibsonia, presents Stephen Sondheim's Tony award-winning musical comedy "Company" at 8 p.m. Friday and Saturday at the theater inside Washington Place at St. Barnabas. Cost is $29 for a show only or $48 for a show and dinner at any of the Atria's Restaurant & Tavern locations. Call 724-444-5326 or visit the website, www.keantheatre.com.<B>New Castle Playhouse</B>, 212 E. Long Ave., New Castle, presents "Joseph and the Amazing Technicolor Dreamcoat" through Aug. 1. Curtain is at 7:30 p.m. Fridays and Saturdays and 2 p.m. Sundays. Tickets are $15 for adults, $12 for senior citizens age 60 and older and for students, and $10 for children age 12 and younger. Call the box office at 724-654-3437 from 9 a.m. to 4 p.m. weekdays or visit www.newcastleplayhouse.org.

<B>CLO Cabaret</B>, is hosting the world premiere of " 'S Wonderful," a new musical revue celebrating George and Ira Gershwin, through Sept. 5 at 655 Penn Ave. Curtain is at 7:30 p.m. Wednesdays through Saturdays and 2 p.m. Saturdays and Sundays. There are also some shows at 1 p.m. Thursdays. Tickets range from $34.50 to $44.50. Call 412-456-6666.<B>Pittsburgh CLO</B> presents "Hairspray" through Aug. 1 at the Benedum Center, 719 Liberty Ave. Songs include "Good Morning, Baltimore" and "You Can't Stop the Beat." Shows are at 8 p.m. Tuesdays through Saturdays and 2 p.m. Saturdays and Sundays. Tickets start at $20.50. For tickets, visit www.pittsburghCLO.org or call 412-456-6666.