[Spotted] Justin Bieber Smoking Up, Riding Segway, Causing All Kinds of Problems

As previously reported, cops responded to multiple calls from neighbors that Bieber was speeding around and endangering children on the street, with former NFL star Keyshawn Johnson actually pulling up to Justin's residence to confront him over this behavior

Now, according to TMZ insiders, we've learned that Bieber's actions around his gated community go far beyond one reckless driving incident.

Over just the past few days alone, they allegedly include:

•  Reaching dangerously high speed in his Ferrari and motorcycle.

•  Nearly hitting a pedestrian when pulling out of his driveway Sunday.

•  Loud noises emanating from parties that ran until at least 3 a.m., with police called regarding noise reports on two occasions.

•  Riding on a Segway with a friend, both of whom were clearly smoking marijuana.

Neighbors also take major issue with cars parked on the street all night and with Justin running a business from his house, which goes against homeowners association rules.