Seneca Valley School District has canceled tonight's 7:30 performance of its musical "Dirty Rotten Scoundrels" because key singers are ill

The singers have sore throats and coughs, "which are not conducive for singing," said Linda Andreassi, district spokeswoman.

"We decided the best bet is to give them 36 hours to recover and rest their voices and themselves," she said. "We're hoping we'll be able to go ahead with Saturday's show."

The cast of about 100 put on three performances last weekend and were to perform tonight and Saturday. Tonight's performance has been rescheduled for 7:30 p.m. Sunday.

Any further changes will be posted on the district's Web site.