Justin Bieber's neighbour accuses him of battery

Justin Bieber has been accused of threatening his California neighbour just hours after returning home on a break from his trouble-plagued world tour.
The teen superstar flew back to the U.S. on Tuesday following a Monday night gig in Poland, and had hardly set foot in his home in Calabasas when he allegedly became involved in a verbal altercation with another man.
The argument, reportedly over claims that the singer's Calabasas mansion had become a party house for pals while he was overseas, became heated and Bieber security guards escorted the disgruntled guy off his property, according to TMZ.com.
The neighbour subsequently filed a police battery report over the incident, alleging that Bieber had threatened him and made physical contact with him during the breakfast showdown, and now officers from the Los Angeles County Sheriffs Department are investigating the complaint.
The incident is the latest drama in a month filled with headline-grabbing antics - the Baby singer upset fans in London by showing up to a gig in London over an hour late and then fell ill, vomiting backstage at one show and checking into hospital. There have also been a string of paparazzi showdowns.
And Bieber was photographed shirtless on Monday as he arrived at Lodz Airport in Poland, braving freezing temperatures of around minus 10 degrees Celsius.
Bieber's Believe tour is expected to continue in Munich, Germany on Thursday.