Nashoba Valley Technical High School’s Drama Club recently completed a successful, three-performance run of “Hairspray,” the infectious story of music, dancing, integration and, of course, big hair, set in the ’60s, when change was in the air (along with a lot of hairspray). Here, at the end of a dance number are, front, from left, Anthony Brann (sophomore, Pepperell), and Emma Hayes (senior, Littleton), with, at right, Marc Macedo (freshman, Chelmsford), as Corny Collins, host of “The Corny Collins Show.” In back, from left, are Russell Byron-Kelly (sophomore, Groton), Mikaela Berthiaume (sophomore, Townsend), Rebecca Landers (senior, Townsend), John Young (sophomore, Billerica), Rebecca Reese (junior, Chelmsford), Sarah Anderson  (freshman, Chelmsford) and Jared Abreu (freshman, Townsend).