The annual school musical premiered this week, with sold out performances Thursday, Friday, and Saturday. The production of “Legally Blonde” features middle and upper schoolers in a comedic performance of a 2007 musical written by Laurence O’Keefe and Nell Benjamin and book by Heather Hach based on the novel and film Legally Blonde by Amanda Brown. The arts department worked hard on this production with numerous late night practices and months of planning.