Pop star Justin Bieber was treated by doctors after suffering breathing problems during his concert at London's O2 Arena, his spokeswoman has said.
Melissa Victor told the Reuters news agency the Canadian singer took a 20-minute rest before returning to the stage to finish the show.
The 19-year-old star was performing the third out of four nights at the venue.
Earlier this week he was criticised for keeping fans waiting for up to two hours for Monday's performance.
Ms Victor said after the concert: "[Justin's] heading to the doctor now. He fainted and took a 20-minute reprieve and was given oxygen."