th and 27  for the musical â Once On This Island Jr.â. Auditions are open to any current Garden City Public Schools students that are in 5 th through 12 th grades. Students do not need to prepare anything for the audition. They just bring a positive attitude and excitement to the try out. Students that would like to practice ahead of the audition can go to https://www.mtishows.com/once-on-this-island-jr and check out the cast information and audition central. There are practice scripts and music to help prepare for this audition. The performances will held on June 5 th at 10:30 a.m. and 2:30 p.m. at Florence Wilson Elementary School. The performance will be staged outside. If there is poor weather the event will be presented at Garden City High School.