The Black Keys Patrick Carney changed his name to Justin Bieber on Twitter as his feud with the Biebs rolls on.
Last week, Justin said that Patrick needed "slapping" after Patrick criticized him at the Grammys. Carney reacted by changing his Twitter name and he's now claiming to be Justin Bieber.
One of his Tweets said: "There is no Patrick. I am Justin now."
No comment from Justin Bieber or his camp.