Frenchy and Jan, played by Freya Blount and Payton Ravine, attempt to pierce Sandy's ears, played by Lydia Eichler, during a sleepover during a dress rehearsal for Parkway High School's "Grease" on Tuesday night. Performances are at 7 p.m. Friday and Saturday and at 2 p.m. Sunday in the high school auditorium. Tickets, available at the door, are $10 for adults and $8 for students.