Let no one say I don't post competitions for everyone...
From The Really Useful Group website (you have to register to enter):
You can win one of our new full colour souvenir brochures, signed by cast members from the West End production by simply sending us the answer to the question below...http://www.reallyuseful.com/rug/join/competition.htm
I should think everyone knows the answer. If not look at IMDB.com...:w00t: