Justin Bieber's mother Pattie Mallette speaks out about her son's recent erratic headline-making behaviour  

It is hard to ignore that Justin Bieber's behaviour is getting more and more erratic.

Urinating in a janitor's mop bucket, spitting at fans and most recently allegedly getting into a bloody brawl in the upscale area of The Hamptons, it appears the 19-year-old is becoming more and more out of control.

Now the teenager's mother Pattie Mallette has now opened up about her son's actions in an interview with Extra host Mario Lopez. 

Justin Bieber's mother speaks out about son's recent behaviour

Worried: Justin Bieber's mother Pattie Mallette has opened up about her son's recent behaviour

The 37-year-old, who is currently promoting her new book, Nowhere but Up Teen Edition, admits that hearing about this incidents deeply hurts her.  

'If it affects the world the way it does, imagine how it affects me as a mom seeing these headlines,' she told Lopez.  

The mother-of-one says she will be having a serious talk with her only son after his most recent incident, a brawl which left an alleged victim knocked out on the pavement.

'I have to talk to him and have our conversations,' Mallette said. 

Hot water: Justin, see here on stage over the weekend, was reportedly involved in a brawl which left an alleged victim knocked out on the pavement on Saturday night 

'I couldn't have predicted the timing about all these headlines. I mean I have had this promo tour and this press tour....some people think I am going out and doing the rounds, talking about my son's behaviour but really I am out here to talk about my story.

Mallette says that when she does speak to her son, she makes sure that she gets her feelings on certain issues across to him.

'We talk about the things that he is going through. We talk about the pressures that he is under and what people are saying and how he feels about it and the questionable things that people are saying that he is doing,' she explained.

'And we talk and he knows what I think...I definitely am a mom first and I care deeply about what how he is feeling and what he is going through.'

Erratic: It is hard to ignore that Justin Bieber's behaviour is getting more and more erratic

When asked what she thought about Justin's friends, who include the notoriously troublesome Lil' Twist, Mallette hinted that she does not approve of her son's pals.

'I... well... I don’t know how to answer that,' to which Lopez replied, 'You just did.'

This year has been a tumultuous time for Pattie's teenage son.

Speaking out: Justin's mother spoke to Extra! host Mario Lopez as she promoted her new book 

As well as coping with increasing fame and an on and off relationship with long-term girlfriend Selena Gomez, the singer has found himself in hot water on more than one occasion.

And Justin's latest incident ended in a bloody brawl on Saturday night.

The 'Beauty and a Beat' singer allegedly 'went nuts' at a fellow reveller as he partied at hotspot South Pointe, in ritzy New York resort the Hamptons, leading to a physical altercation between members of the star's entourage and club patrons.

Gross: Last month Justin was caught spitting over the side of his balcony in Toronto where fans were waving to him down below 

Does Pattie disapprove? When asked what she thought about Justin's friends, who include the notoriously troublesome Lil' Twist, Mallette hinted that she does not approve of her son's pals

The fight is thought to have been triggered by a heated exchange between Justin and a male club-goer after a female friend attempted to hit on the singer in his roped-off V.I.P. section.

A source told the New York Daily News: 'He ripped his shirt off and went nuts. He was screaming.'

Stable influence? Justin's behaviour appeared to change after he split with Selena Gomez 

Justin's security team quickly intervened and took the star out to the club's car park to cool off, but according to TMZ things flared up again.

Justin - who was by then sitting in his SUV - allegedly jumped through the sunroof onto the hood of the car.  At that point it's unclear what happened, but the alleged victim was knocked out on the cement.

Police confirmed to TMZ Justin's entourage went after the clubgoer, after he had become aggressive with them.

A spokesman for Bieber confirmed to MailOnline: 'Justin was not involved in any altercation.'

Bieber's entourage are now under investigation after a nightclub patron was left sprawled out in the parking lot and taken to a hospital.

An investigation is underway after the alleged victim filed a police report. Justin will not be the target of the investigation.

Earlier in the evening, the 'Boyfriend' hitmaker's bodyguards were accused of being 'heavy-handed' with fans who had hoped to meet the star.

Justin arrived with his entourage and four bodyguards at around 2am and quickly 'took over' the V.I.P. area, which was closely guarded by his eagle-eyed minders.

The security team were described as being 'intimidating' and 'overbearing', and even flashed a torch in the face of partygoers who tried to snap pictures of Justin on their cameraphones.

It comes after a string of incidents where Bieber demonstrated 'pop brat' behaviour'.

He has been pictured spitting on fans and urinating in a janitor's mop bucket in the kitchen of a New York night club.