Is American Idol technically a fandom?
It has a large fan base, and people watch it and talk about it.

This person posts in the american idol community about Corey getting kicked off the show. Hilarity ensues in the comments when a post from "Corey's Cousin" is cited for "more facts". My favourites:

Every time you scream at me, I'm convinced more and more that you're the most hostile person I've ever encountered online.

Actually I am not wrong and you're a jackass because this is not British/Scottish/Irish Idol is American Idol you dumb fuck. (In response to picking over British poster's spelling of "apologise")

And so many more.