SHE was the most chic Sixties doll that ever walked the streets, and all Britain enumerated her qualities when Peter Sarstedt's haunting pop-song hit the charts in 1969. "You talk like Marlene Dietrich, And you dance like Zizi Jeanmaire. Your clothes are all made by Balmain, And there's diamonds and pearls in your hair. But where do you go to, my lovely?..."