Credit: Instagram

Ah, the joys of ticking off Beliebers. Patrick Carney could tell you all about it. So could Olivia Wilde.

The actress tweeted about Justin Bieber's constant shirtlessness earlier this month, writing, "Bieber, put your f*cking shirt on. (unless you lost all your shirts in a fire in which case my condolences and please purchase a new shirt.)"

The response from Justin’s fans was not gentle.

Olivia was on The Tonight Show with Jay Leno and said she got about 17,000 angry responses. (She may have been exaggerating … but probably not by much.) “It’s pretty much the funniest thing that’s ever happened to me because my Twitter feed is now filled with the most hilarious abuse,” Olivia told Jay. She read off some of her hate mail. "One of them was, ‘Are you a lesbian or are you too old?’ And it’s great, because it’s a question I never asked myself before. This one was interesting: ‘Put your shirt over your mouth.’ Which, I’m assuming, is a Shakespearean insult.” She was also called “bitch” multiple times, and didn’t share some of the more explicit comments.

Olivia joked to CNN, “I’m going to get attacked with acid. Someone’s going to throw acid in my face. If that happens, there are 35 million Beliebers that did it, so find them.”

Protect her, Jason Sudeikis!

Sources: MetroCNNHuffington Post