The bookstore began to sell tickets Monday for the upper school fall musical “Hairspray,” which will run from Nov. 8-10. Actors, cast, and crew have been able to pre-order tickets since Oct. 8, with a total of 236 tickets already sold. The $15 tickets are for reserved seating.

“The musicals sell out almost every time, [but] there always are a few people who don’t use all their tickets,” box office coordinator Melissa Ouellet said.

With 55 actors and a pit orchestra, “Hairspray” will be one of the biggest productions in Harvard-Westlake history.

“We knew the cast would be large but the number of enormous group dances and the amount of choreography that’s involved is more than we imagined,” upper school performing arts department head and director Rees Pugh said.

The production of the show has necessitated cast rehearsals five times a week and pit orchestra rehearsals twice a week. The students have been working since Sept. 10, when they did their first read through with the complete cast.

“It’s always chaotic,” performing arts teacher and co-director Michele Spears said. “Things are being done so much quicker, and we have a much bigger ensemble than would normally be done.”

The directors and students believe that they are heading in the right direction.

“I’m really excited about opening night,” cast member Nina Juarez ’16 said.