Tickets are on sale now for the Worcester Prep musical, “The Pajama Game,” featuring a talented cast of Upper School students, to be held at 7 p.m, Friday and Saturday, Feb. 22 and 23, in the WPS Athletics and Performing Arts Center. Tickets are $12 in advance or $15 at the door. To purchase tickets in advance, go to www.worcesterprep.org/ticket-sales or call 410-641-3575. The show is open to the public.