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."

Jenny McCarthy's son is being bullied.
The former Playboy model has been left heartbroken after discovering 12-year-old Evan is being picked on by other children at summer camp, but due to his autism he doesn't realise they're being mean to him.
Speaking on talk show 'The View' this morning (21.07.14), she explained: "My son's main goal is to make as many friends as possible. They're [the other children are] laughing at him but he laughs too. I said, 'You have to find the kids that like you and are nice to you. Who do you sit next to in the cafeteria?' And he said, 'No one. I ask, and they say no.' "
However, the 41-year-old beauty thinks, in some ways, it is good Evan - whom she has with ex-husband John Mallory Asher - doesn't realise he's being bullied, but she understands that she'll have to tell him soon.
She said: "It's so wonderful that he's not aware that kids are making fun of him. But at what point do I need to teach him that? Evan told me, 'They ask me to put bugs down my pants and I do it and they laugh.' He thinks it's funny. Do I just let him be? At what point does it stop? In high school they'll be like, 'Here drink this?' 'Okay!' "
Jenny, who will leave the show after this season, was offered some advice from her co-star Whoopi Goldberg.
Whoopi, 58, said: "My suggestion: Have Evan introduce you to his friends and when they're off having fun, have a conversation with the parents."

Philip Seymour Hoffman didn't want his children to be "trust fund kids".
The late 'Hunger Games' actor - who died of a drug overdose in February aged 46 - repeatedly rejected suggestions from his accountant that he set aside money for Cooper, 10, Tallulah, seven, and five-year-old Willa, court documents claim.
The remarks emerged after attorney James Cahill Jr. - who was appointed by Manhattan Surrogate's Court to protect the children in his estate proceeding - interviewed the late actor's accountant David Friedman.
According to the New York Post newspaper's Page Six column, the documents state the accountant "recalled conversations with [Hoffman] in the year before his demise where the topic of a trust was raised for the kids and summarily rejected by him."
Instead, the 'Doubt' star wanted all his fortune - estimated at around $35 million - to go directly to their mother, his long-term girlfriend Mimi O'Donnell, because he believed she would "take care of the children."
The documents added: "Friedman also advised that he observed Hoffman treating his partner/girlfriend . . . in the same manner as if she were a spouse."
According to the attorney's notes, Philip confided to his accountant that he "simply did not believe in marriage."
The couple met in 1999 and the costume designer had "substantial" joint bank accounts with her partner, who she first met in 1999.
The lawyer observed: "The size and nature of the jointly held assets support the position that [Hoffman] regarded [O'Donnell] as the natural object of his bounty."
Though it had been claimed Mimi had thrown the actor out of their apartment before his death because of his addiction, the attorney recommended the will be approved as there was nothing suspicious about it.
The will, which was written in 2004 before the birth of Philip's daughters, also included an unusual request about his sons upbringing.
It reads: "It is my strong desire my son, Cooper Hoffman, be raised and reside in or near the borough of Manhattan [or] Chicago, Illinois, or San Francisco, California.
"The purpose of this request is so that my son will be exposed to the culture, arts and architecture that such cities offer."

Jessica Simpson has paid tribute to her new husband on their return from honeymoon.
The singer-turned-designer tied the knot with former NFL player Eric Johnson on July 5, and following a relaxing post-wedding break in Punta Mita, Mexico, it would seem she is more in love than ever.
Jessica posted a series of photos on Instagram proclaiming her love, one of which showed her cuddling up to Eric as she gazed seductively at the camera, to accompany the image, she wrote: "I love this man, our marriage, and everything in between"
She then shared another selfie with the pair posing with their tongues sticking out, which she simply captioned: "Yummy"
Earlier on, the 34-year-old businesswoman - who has children Maxwell, two, and Ace, 13 months, with Eric - posted a photo from her honeymoon, showing off her dramatic weight loss to its fullest effect.
Posing with her hand on her hip, Jessica's fans were given a glimpse of her impressive wedding ring
Jessica's followers were even treated to a view of the gorgeous ocean from her hotel room, which was located in the luxurious Four Seasons Punta Mita Resort.
A source told Us Weekly magazine: They had an amazing time and looked so in love during the entire visit. They enjoyed cocktails by the pool and spent a lot of time on the beach, just relaxing after their big day."

Adam Levine wept as he married Behati Prinsloo.
The Maroon 5 singer and the Victoria's Secret model tied the knot in Cabo San Lucas, Mexico, on Saturday (19.07.14) and the "light-hearted, short" ceremony - which was officiated by Jonah Hill - left the groom, his new bride and their guests feeling emotional.
A source told RadarOnline.com: "Everyone was crying, including Adam, and even the guests who didn't know the family very well were crying tears of joy."
The 35-year-old singer managed to hold back his tears to say his vows, which he penned himself in just 20 minutes, and even managed to poke fun at himself.
He reportedly said: "Behati, I love you more than I love myself and we all know how much I love myself."
And Adam wasn't the only one to make the guests - which included 'How I Met Your Mother' star Jason Segel and 'Iron Man' actor Robert Downey Jr - laugh as Jonah prompted giggles when he shouted "Well done" at the end of the ceremony.
Insiders at the wedding previously praised the 'Wolf of Wall Street' star for his "sweet" words at the ceremony.
A source said: "Jonah was hysterical. He was telling so many jokes, but then in the middle would be so sweet and sincere.
"He also talked about how sweet Behati is and how perfect they are for one another."

Ariana Grande is being kept awake by "insufferably loud frog sex" outside her home.
The 'Problem' hitmaker took to Twitter to complain about the mating amphibians but happily found a solution to he problem in the form of a relaxing sounds app for her mobile phone.
She tweeted: "there are always these loud ass frogs mating outside my window at home. please keep it down y'all. much appreciated.
"bought an ocean sounds app to block out the insufferably loud frog sex taking place outside my window goodnight (sic)."
Meanwhile, Ariana, 21, recently hit back at claims she is similar to Miley Cyrus.
The two followed a similar path - with Ariana getting her big break on Nickelodeon show 'Victorious' while the 'Wrecking Ball' hitmaker starred in 'Hannah Montana' before turning to music - but the former has insisted the "comparisons" should end there.
She said: "There are so many comparisons for girls in this industry it's annoying.
"I'm not thinking: 'Miley Cyrus is doing this so I ought to do this too.'
"We are all trying to do our own things and be successful in our own right."
However Ariana is still keen to shed her baby image and "showcase" her maturity and growth in a live environment, while she also admitted fame meant she was more restricted than she was in the past.
She added: "I'm always excited by people evolving, changing and growing up.
"I just get to showcase it on stage ... In the past month things have changed drastically in my life. I can't go out with a little bun on my head and no make-up any more."

Beyonce has hinted that she will perform on the 'Fifty Shades Of Grey' soundtrack.
The 32-year-old singer posted a teaser trailer for the raunchy movie on her Instagram account along with her crooning a sensual version of 'Crazy In Love'.
'Fifty Shades Of Grey' stars Jamie Dornan and Dakota Johnson - who play bondage loving billionaire Christian Grey and virginal Ana Steele - can be seen writhing around naked in the teaser, with the full trailer to follow on Thursday (24.07.14).
Beyonce simply captioned the video #fiftyshades, leaving fans guessing as to her involvement.
It is unclear how Beyonce got involved in the project - which has been directed by Sam Taylor-Johnson - but her husband Jay Z's protege Rita Ora has a small part in the movie.
The 23-year-old singer tries her hand at acting in the new blockbuster adaptation of E.L. James' best-selling erotic novel and she admitted she was so nervous about her role - playing Christian's sister Mia - she worried she would mess up.
Speaking in May, she said: "I've just shot the movie, 'Fifty Shades of Grey'. That took up a lot of my time as I didn't wanna embarrass anybody, so I made sure I knew exactly what I was doing.
"It was an incredible experience. I went from not knowing what it's like being on a movie set, to feeling like I knew them all for years, and I wasn't even there for that long."

Radiohead's Jonny Greenwood has been emailing song ideas to Thom Yorke for the band's new album.
Jonny has revealed that new Radiohead material is in the works after a year-long hiatus and he and Thom are in constant contact about new compositions.
Talking to The Sunday Times, Jonny explained: "I was emailing stuff to Thom last night, actually, but it's not the same, is it? You don't see him tutting."
The band took a break after touring with their last album, 'The King Of Limbs', but Jonny, Thom and bandmates Colin Greenwood, Phil Selway and Ed O'Brien are ready to get back to work together.
However, fans can expect to wait a while before hearing any of these new songs.
When asked if the group has a release date in mind, Jonny said: "No! Release? No, no idea. No.
"Our plan is to start making music soon. We've just got to get the inertia back."
In the past, Jonny has stated that the band will reunite in the studio in September.
Speaking on the BBC 6Music show, he told presenter Mary Anne Hobbes: "We're going to start up in September, playing, rehearsing and recording and see how it's sounding."

Su Pollard has spurned the opportunity to take part in 'I'm a Celebrity... Get Me Out of Here!'
Bosses of the popular ITV show had wanted the comedy actress - who is best known for playing Peggy Ollerenshaw in 1980s sitcom 'Hi-De-Hi' - to appear on the next series, but Su admits she is too scared to participate.
The 64-year-old star explained: "It's a great show but I've had to say no. I hate creepy crawlies and spiders and snakes, and I just know that I'd be a screamer that everyone picks on."
She added to the Daily Star newspaper: "I couldn't eat giraffe balls. I couldn't do those trials.
"The campers would end up anorexic by the end of the show."
Su's attention is currently firmly fixed on rehearsing for the role of Maid Marian in a new comedy based on Robin Hood, called 'Ha Ha Ha Hood and The Prince of Leaves', which is to debut in Chelmsford on August 19.
The next series of 'I'm a Celebrity' - the fourteenth in total - is to hit to screens later this year.
Last year's jungle competition was won by former Westlife singer Kian Egan.
Notable contestants included Joey Essex, Amy Willerton and David Emmanuel.

'24' could return for another season.
Peter Rice - CEO of FOX, which airs the hit show in the US - has suggested Kiefer Sutherland could reprise his famous role as Jack Bauer once again following the success of recent miniseries '24: Live Another Day'.
The counter-terrorism drama was revived after a four-year break as a 'limited event series' consisting of 12 episodes.
Talking at a Television Critics Association event on Sunday (20.07.14), Peter enthused: "I loved this year's season of '24', I thought it was fantastic. I've always been a fan and it just twisted and turned, and I could never guess where it was going. We haven't had a specific conversation about it coming back yet. I'm sure that we will in the future."
Peter went on to praise the cast and crew and expressed his belief that '24' still has "many more stories to tell".
He added: "It's a wonderful franchise, Kiefer and Evan [Katz] and Howard [Gordon] and Manny [Coto] did a great job this year.
"So when you look at the show itself, it has many more stories to tell, but I think we have to sit down and talk to the creators about it."
'24' originally aired from 2001 to 2010, earning numerous awards, but ended after eight seasons, each consisting of 24 action-packed episodes.
Kiefer and long-time co-star Mary Lynn Rajskub (Chloe O'Brian) both returned for the 2014 revival which was filmed in London.

'Gracepoint' will end in a "very different place" to 'Broadchurch'.
Producers have promised the US remake of the murder mystery drama will blaze its own trail, despite the early episodes appearing to be a carbon copy of the ITV show.
Speaking at a Television Critics Association event yesterday (20.07.14), showrunner Dan Futterman explained: "I don't want you to rule anybody out as a suspect. We end in a very different place, which is both exciting for the first season - and what could be a great second season as well."
'Gracepoint' executive producer Carolyn Bernstein revealed the reason the early episodes are so similar to the British version is because she and Dan felt show creator Chris Chibnall's scripts were perfect and didn't want to make unnecessary changes.
She explained: "We did consider starting in a different place for the fist episode, but the first episode of 'Broadchurch' was so well done. Why contort ourselves when that was the smartest way to go?"
But Carolyn went on to "promise" Gracepoint's plot would unravel into fresh storylines that viewers won't see coming.
She added: "As this series progresses, it really diverges. We're not particularly worried about the overlap."
David Tennant reprises his role from 'Broadchurch' - albeit with an American accent - as the show's lead detective. 'Breaking Bad' actress Anna Gunn, Michael Pena, Jacki Weaver and Nick Nolte star alongside him.

Vin Diesel says 'Fast & Furious 7' was the "hardest movie" he's ever made.
Filming has now wrapped for the seventh instalment of the film franchise and actor Vin Diesel has opened up about the pain of losing his co-star Paul Walker in a tragic car accident in late 2013.
Talking to Access Hollywood, Vin reflected: "It was surreal. Needless to say the hardest movie I've ever done.
"I remember when the tragedy happened. My mother said, 'It's not fair that you have to mourn in front of the world'.
"What's even harder is to mourn and simultaneously pretend that that person is next to you. It's very, very weird."
Paul - who played Brian O'Conner in the films - died in November last year while in the passenger seat of a car being driven by his friend Roger Rodas.
The car burst into flames after hitting a lamppost in California and it's thought that the vehicle could have been travelling at up to 100 miles per hour.
Sadly, Paul died before finishing filming his scenes for 'Fast & Furious 7' and his brothers Caleb and Cody Walker were asked to fill in for their late sibling as a body double, so that the movie could be completed.
Dwayne "The Rock" Johnson - who also stars in the film - previously confessed that completing the project was "bittersweet".
He shared: "Last day on set, it was bittersweet. It was emotional, it was beautiful. It was amazing, it was sad, it was all those things. We are all in the business we all know and love Paul Walker and we truly lost one of the good ones."
He added: "My number one thought is for his daughter [Meadow Walker]. I believe she is doing okay. I think she's doing as okay as she can."