And he's never been more deserving of an "imp slap."
Birds of a feather flock together on Twitter, and a study takes a look at exactly how that works.
Established hot person/actress Olivia Wilde is learning never to piss off Beliebers on Twitter after the tween terrorist organization bombarded her with somewhere between 17,000 and 35 million angry tweets.
Like most anti-Bieber sentiment posted to Twitter, the tweet would have quickly been buried under Twitter's daily assortment of Instagrammed lunches and hashtags—had Bieber himself not retweeted it to his millions of followers.
Black Keys drummer Patrick Carney is the latest celebrity to feel the wrath of Justin Bieber's fans on Twitter.
The Canadian pop prince is now the most-followed person on Twitter, with more than 33,327,313 followers.