So a thought experiment dares "Wicked" and has thereby the most evil witch of American children's literature made: the evil, green-skinned witch from "The Wizard of Oz", which seeks the heroine Dorothy from life and so the fear of entire generations.
"Wicked" tells the unlikely friendship of two very intelligent witches: the "good" witch Glinda and the "evil" green witch Elphaba. It is about inner values and the beautiful appearance to prejudice, ignorance, love that you can not have to power and abuse to propaganda and fear that you do not know.
All this is combined with great lyrics, great humor, catchy songs, an impressive show and insane voices. No wonder that this show since the end of 2003 a very successful run on Broadway and since September 2006 as successful in London.
The songs have an enormous range and living part from the contradiction between words and music (see "What is this feeling?", A catchy song about mutual contempt). Sometimes they remind me in their range of Alan Mencken and Howard Ashmans "Little Shop of Horrors".
I was once asked which were my favorite songs from "Wicked" and I could after continuous CD-listening only answer so: all!
Conclusion: An impressive musical with absolute cult factor.