Wicked is the Broadway musical prequel to The Wizard of Oz that dramatizes the unlikely friendship between Elphaba (the future Wicked Witch of the West) and Glinda, featuring music by Stephen Schwartz and a book by Winnie Holzman. This touring production brings the show's large-scale sets, costumes, and signature songs like "Defying Gravity" to the Boston Opera House, delivering a full-scale Broadway experience in Boston. The show is notable as one of the most popular contemporary musicals and regularly tours major U.S. cities.