The police were reportedly called to Justin Bieber's apartment four times over the weekend.
The 'Believe' hitmaker was paid a visit by law enforcement officers at his home in Beverly Hills on Saturday (19.07.14) after his neighbours complained about his loud music and partying on the roof top.
Patrol cars called to the apartment at 8:30pm, 12:50am, 1:50am and again at 3:00am, but the 20-year-old hunk was not cited as he agreed to turn the music down.
However, the 'Baby' singer is currently on a two-year probation for pelting his neighbour's house in Calabasas with eggs earlier this year, and any further incidents could have serious consequences.
An insider told gossip website TMZ.com: ''If the Beverly Hills Police Department cites Justin, they will forward the matter to the Los Angeles County Probation Department, which could trigger a probation violation and then he's in jail territory.''
Meanwhile, this isn't the first time Justin - who moved out of his Calabasas home in March - has run into problems with his new neighbours as police were called to his home twice last month after fellow residents complained of excessive noise and marijuana use.
A source said previously: ''The smell of marijuana was permeating the floor, especially my hallway which is shared by [Justin's] unit.''