This Justin Bieber-Patrick Carney feud is really getting out of hand.
The 18-year-old singer tweeted Tuesday that "the black keys drummer should be slapped around haha" after Carney, said Black Keys drummer, took the TMZ bait when asked whether Bieber was unfairly snubbed by the Grammy Awards, which didn't nominate him this year. (The Black Keys, however, won Best Rock Album for El Camino as well as Best Rock Song and Best Rock Performance for "Lonely Boy.")
"He's rich, right?" Carney said. "Grammys are for music, not for money ... and he's making a lot of money. He should be happy."
Bieber was not amused. His "slapped around" tweet drew more than 47,000 retweets including one from Carney, who posted the teen idol's message -- a call to arms for his 34 million followers, rather -- and added a frown-face emoticon.
Carney has since responded to a series of insults from Bieber fans who are launching social media grenades such as "you're ugly" and "hey old scary grandpa, FYI you are a bad drummer." Writing to one furious Belieber, he quipped: "I will and so will you one day. it's kinda scary to think about isn't it? RT @GomezIsShining: @patrickcarney just die.. DIE."
Bieber, who just released his new single "You Want Me," certainly knows how to summon an army of cyberbullies.