The Syrian-Lebanese singer, George Wassouf, has been arrested in Sweden on suspicion of drug offences, police say.
Reports say the singer was found in possession of cocaine when police raided a hotel in Stockholm on Saturday, shortly before a concert, BBC reported.
Police say they are continuing their investigation into the incident, and formal charges have not been pressed.
Mr Wassouf, 46 is a major music star in the Arab World. He has released more than 30 albums since the age of 16.
Thousands of people had bought tickets to see him perform on Saturday evening at a newly opened venue in the Stockholm suburb of Solna. The concert had to be cancelled following his arrest.
The Swedish newspaper, Aftonbladet, said Wassouf had been in possession of 30g of cocaine when he was arrested. Police would not comment on the report.