A cult of personality or personality cult arises when a country's leader uses mass media to create a heroic public image through unquestioning flattery and praise. Cults of personality are often found in dictatorships but can be found in some democracies as well.

A cult of personality is similar to general hero worship except that it is created specifically for political leaders. However, the term may be applied by analogy to refer to adulation of non-political leaders.

http://en.wikipedia.org/wiki/Cult_of_personality