celebrity just isnt a hard and fast term like it used to be. In the days when you could only see a film at the cinema or the only way to hear a band was buy the record or go to the show, then celeb status was easily defined. Now with so many media outlets, and so many variations on "popular" media its not possible to define celebrity in the same context.
If even 1 person watching thinks a person is a celeb, then they are