Be there when 3,000 Ping-Pong balls fall from the ceiling during the "Largest Indoor Fake Snowball Fight" Friday at United Skates of America, 1276 Hicksville Rd., Seaford. Skate from 6:30 to 9 p.m.; from 9 to 9:30 p.m. is the "snowball" fight. $10 per child and $11 per skating adult, $4 for skate rental. 516-795-5474; unitedskates.com/seaford.
''Camp Rock" the musical is based on the hit Disney movies and features songs such as "This Is Me." The show opens at 8 p.m. Saturday at the BroadHollow Theatre Company's BayWay Arts Center, 265 E. Main St., East Islip, and runs Saturdays at 8 p.m. and Sundays at 2:30 p.m. through Feb. 20, with Friday shows Feb. 11 and 18 at 8 p.m. Geared to the tween crowd. Tickets are $15 in advance, $20 at the door. 631-581-2700; broadhollow.org.