Definitions of Genre, Sub-genre and Hybrid-genre

Genre: a category of artistic composition characterized by similarities in form or style.
      examples: music - kerrang
                        film - empire
                        lifestyle - good housekeeping

Sub-genre: a subdivision of a genre of literature, music or film.
      examples: pop - we love pop
                        dance - mixmag
                        rock - kerrang
  
Hybrid-genre: a genre of media that blends themes and elements from two or more different genres.
       examples: music/fashion - flux
                         music/film - no ripcord
                         fashion/sport - sports club