Westhampton Beach High School thespians, under the direction of Kimet Speed, will present a performance of “The SpongeBob Musical” on Friday, March 20, at 7 p.m.; Saturday, March 21, at 7 p.m.; and Sunday, March 22, at 2 p.m. in the school’s auditorium, 49 Lilac Road, Westhampton Beach. Tickets are free. The musical was selected for its entertainment value, said Speed, who added, “The show is fun and uplifting and has catchy tunes and familiar material that is suitable for all ages.”