A "re-imagining of the Wizard of Oz story", it is told from the perspective of the Wicked Witch of the West and the Good Witch and has been running at London's Apollo Victoria Theatre for seven years. Based on the novel by Gregory Maguire, it proposes that Wicked Witch Elpahaba was conceived during an affair between the Munchkin Governor's wife and a mysterious stranger with a bottle of green elixir. The baby grows up to be gorgeous, but rather minty in colour and when she attends university her rival appears in the form of Glinda, a twinkly blonde with a Valley Girl mentality. The music, which was made even more popular by television's Glee, includes the roof-busters Defying Gravity and For Good, written by Academy award-winner Stephen Schwartz. Wicked runs at the King's Theatre, Glasgow, from May 6 to 31. Tickets on sale from March 8 for personal callers. The London production continues its open-ended run, with tickets currently on sale until April 26.