A performance is when an entertainer of some sorts behaves in a way that is designed to incite amusement in others. This behaviour is often a pre-written script, song, dance or comedic act, but sometimes it can be improvised on the spot. A performance often occurs in places designed for the arts, such as in a theatre, concert hall or dancehall. But anywhere can actually be turned into a stage, if there are people watching. Johnny Cash did a famous performance in 1968 in Folsom State Prison, in California, where he performed for the inmates in the main dining hall.