A famous definition of celebrity comes from the cultural theorist Daniel Boorstin. In his book,The Image: A Guide to Pseudo-Events in America, he cynically describes celebrities as people well known for their ôwell-knownessö.

A small number of celebrities can be considered 'global', in that their fame has spread across the world, even across linguistic and cultural boundaries. These celebrities are often prominent political figures, actors, globally successful artists, musicians and sports stars.