The enormous birthday cake appears topped with sparklers. All of a sudden, a waiter pipes up and starts singing 'Happy Birthday'! Not only him, but dispersed round the space, some of the other waiters that have simply finished serving you drinks and canapes join in. You're utterly mesmerised and stunned. You are unexpectedly encircled by surprise singing waiters! The celebration is presently coming to life in a style you did not believe was possible.