It sounds a bit like a fun night out, doesn't it? It is however the title of a painting by Pablo Picasso which has just become the worlds' most expensive at $106.4 million. One hundred and six point four million dollars (US). Is it worth it? As much as anything can be worth that amount, I suppose it is-the real shame here though is that it'll go into a private collection and not seen until it comes up for auction again- and not in a museum where everyone could see it.