I agree, I see no reason to hate or be annoyed by Justin Bieber just for not liking his music.
O.T
Although none of these people pop up in my daily life at all, has to be the Kardasians. They're the type that got famous just for being rich and having a sex tape and that really annoys me, they don't actually do anything! I mean say what you want about Justin Biebers songs but he actually can sing, and play instruments (drums iirc)