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A virus that has left half of his face paralysed has forced Canadian pop singer Justin Bieber to cancel upcoming performances and focus on recovery.
In a video posted on Instagram, Bieber said he had contracted Ramsay Hunt syndrome, which affected nerves in his ear and face.
He noted his right eye was not blinking, adding, "I can't smile on this side of my face. This nostril will not move. So there's full paralysis on this side of my face".
Bieber, 28, said he was physically unable to perform his upcoming shows but was doing facial exercises and expected to make a full recovery.
"It will go back to normal," he said.
"It's just time, and we don't know how much time that's going to be."
Bieber found fame as a 13-year-old and went on to become a global pop phenomenon with songs like Baby and Believe.
He has two Grammy wins among 22 nominations, including record and song of the year nods this year for Peaches, and album of the year for Justice which included performances from Australia's The Kid Laroi.