Black Keys drummer Patrick Carney might just have been speaking honestly when a TMZ reporter asked him whether he felt Justin Bieber had been snubbed at the Grammys, but he’s clearly regretting his words now.

The 32-year-old musician has been receiving a deluge of hate tweets from Bieber’s fans all day, ever since the Canadian pop star tweeted that Carney should be “slapped around.”

After cleaning up at the Grammys with three awards including Best Rock Album of the year, Carney was stopped by a TMZ reporter outside of the Chateau Marmont, and asked if he thought Bieber “should have been nominated for anything.”

“I don’t know,” Carney answered on camera. The TMZ reporter persisted, adding, “some people say he got snubbed for not getting nominated.”

“He’s rich, right?” Carney responded. “So I mean, I don’t know. Grammys are for like, music, not for money, and he’s making a lot of money. He should be happy, I guess.”

The clip quickly went viral, and Bieber responded to Carney’s comments on Twitter on Tuesday, writing, “the black keys drummer should be slapped around haha.”

Shortly after his tweet, hundreds of Bieber’s fans began intimidating tweeting messages at Carney.

@patrickcarney YOU'RE MESSING WITH THE WRONG PEOPLEEEEEE,” wrote Twitter user @Maja_Kidrauhl, who describes herself on her Twitter page as a “BelieberForever.”

@patrickcarney who are you? your a flop. Talking s--- about Justin ? LMAO . leave ,” tweeted @HolyBieberSwag_.

But even as outraged messages directed at Carney continued to flood Twitter, the musician continued to tweet about the social media feud, retweeting many of the comments from Bieber’s angriest fans.

“It's cool when you get cornered outside your hotel by a guy with a camera and they ask you a dumb question and then put it on TV. :(“ Carney wrote shortly after the social media onslaught began to take off.

In a cheeky reference to Charles Darwin, famed for his theory of “survival of the fittest,” Carney responded to Twitter user @MLSecret’s message, “@patrickcarney s annoying tweets make me crazy I wanna punch his face seriously#grammys,” writing, “Happy Birthday Charles Darwin!!!”

Around 4 p.m. Carney wrote, “My twitter today has turned into a virtual Claire's Accessories.”