Wicked is a blockbuster Broadway musical that reimagines the backstory of the witches from The Wizard of Oz, focusing on Elphaba and Glinda and featuring music by Stephen Schwartz. This touring production plays at the Boston Opera House, delivering large-scale sets, costumes, and ensemble performances in a traditional theater setting. Wicked is notable for its long-running Broadway success and memorable songs such as "Defying Gravity," making it a major attraction for musical-theater audiences.