Justin Bieber has been accused of battery by a neighbor and cops are at the singer's home in Calabasas, CA investigating.
Justin and one of his male neighbors got into an intense verbal altercation just after 9 AM.
According to TMZ ... the argument between Bieber and the accuser was NOT over a party ... it had to do with a Ferrari.
Bieber had the car delivered to his home last night on a flatbed truck ... and this morning, he was racing the vehicle up and down the streets.
Neighborhood sources tell us ... the neighbor was furious about the deafening noise AND felt Justin was endangering the community by tearing through the streets at breakneck speeds.
It was learnt that the neighbor went over to confront Justin about the situation ... and that's when the two sides got into a screaming match.
