RIO DE JANEIRO - Canadian teen idol Justin Bieber, currently on a Brazil concert tour, is under police investigation in Rio for alleged unauthorised wall tagging.
A police statement said a probe had been launched to determine whether the 19-year-old pop star had received permission from City Hall to tag the wall of a disused hotel in Rio, as claimed by his entourage.
Late on Tuesday, protected by his security detail, Bieber tagged "Respect privacy" and "I am off", as well as several drawings, on the hotel wall. Brazilian police officers nearby did not stop him.
The daily O Dia reported that his bodyguards threatened paparazzi who photographed the scene.
Since his arrival last Friday, Bieber, who gave a concert in Rio on Sunday, has grabbed media attention with a series of peccadilloes.
He was photographed emerging under a blanket from a notorious Rio brothel and later vainly tried to take prostitutes into the posh Copacabana Palace.
Furious that he was not able to do so, the teen sensation reportedly went on a rampage in his suite, breaking various objects valued at nearly US$6,000 (S$7,500) in total.
He and his entourage were subsequently kicked out of the hotel, local press reports said.