The Wicked Witch, Elphaba (originally played by the excellent Idina Menzel), turns out to be good, while Glinda the GoodWitch (originally played by Kristen Chenoweth) is exposed as a smug, ambitious, manipulative bitch, with little talent for sorcery.
"Wicked, " based on Gregory Maguire's cult novel, tells the story of two young witches-to-be, one a green brooder who will be the Wicked Witch of the West and the other blond and bubbly, who will be Glinda the GoodWitch.