How do you launch a career as a witch? Stephen Schwartz's Tony-winning musical WICKED, debuting MAY 17 at the Fox Theatre, explains how. Based on Gregory Maguire's popular novel Wicked: The Life and Times of the Wicked Witch of the West, this musical prequel to The Wizard of Oz fills in the backstories of both the beautiful, popular Glinda the Good, and the green-skinned, misunderstood Elphaba. $27-$66. Through May 28. Tues.-Fri., 8 p.m.; Sat., 2 and 8 p.m.; Sun., 1 and 6:30 p.m. 660 Peachtree St. 404-817-8700. www.foxtheatre.org.