Justin Bieber has claimed his neighbour is lying over claims he threatened to kill him.

The 'Beauty and a Beat' singer is being investigated for battery following a heated verbal argument with a local resident at his Calabasas, California, home on Tuesday (26.03.13), which is thought to have stemmed from his ''reckless'' driving, but the pop star - who allegedly spat at the unidentified man and threatened to kill him - has insisted the confrontation never became physical.

A source close to the 19-year-old musician told TMZ that while Justin doesn't deny there was an incident at his home on Tuesday morning, ''no spit ever left his mouth'' and he never made threats of violence towards the man.

The 47-year-old neighbour told police officials investigating the complaint that he confronted Justin at his home about his ''unbelievably reckless'' driving in the local area, which he claims could have put pets and children in danger, but the star lashed out.

Justin reportedly shouted, ''Get the f**k out of here,'' before spitting in his face and then said, ''I'm gonna f**king kill you''.

The 'Baby' singer's camp, meanwhile, claims the man was trespassing on his property during the incident.

It has also emerged that another local - who is said to be ''extremely close'' to the neighbour - reportedly told fellow residents that she planned to sell pictures of Justin and sell stories about the singer just weeks before the confrontation.

A source told RadarOnline.com: ''This neighbour told people that Justin moving into the neighborhood was a chance to make money by selling photos of him and that got back to Justin, who put in hedges to block the view.

''The neighbour also said money could be made by selling information and that the neighbour already had a direct pipeline to several media outlets.''