Rosie Alvarez, left, portrayed by Meghan Armitage, is serenaded by the quartet of, from left, Joe Lippard, Chris Wurster, Alex Asbell and Dustin Bond during a performance of "Bye Bye Birdie" at the Putnam County Playhouse. Several shows are sold out, but there are still tickets left for the production, which runs tonight and Aug. 18-21. For information, call 653-5880.