Sources say Justin Bieber is on the sizzurp, singer picks up old habit of Lil Wayne and Gucci Mane

We all know that Justin Bieber's favorite color is purple but we made no idea that Bieb was using the purple stuff. That's sizzurp or lean for those who aren't hip.

Word on the street is that JB made his friends sign a $3 million non-disclosure agreement at a recent party but somehow news of Bieb's party habits have leaked to the public. And rumor has it that he's been using and abusing drugs, particularly lean.

Yup, the same stuff that sent Gucci Mane to the psych ward, killed Pimp C and allegedly sent Lil Wayne to the hospital last year. Not a good look Bieb but that may explain some of his outlandish behavior.

According to TMZ, JB had a recent run in with the law after chucking eggs at his neighbor's home.

The site reports that earlier this month, launched eggs at the home and the L.A. County Sheriff was called to the scene while the eggs were still flying. The alleged victim says Bieb even took aim at him when he stepped out onto his balcony after hearing a slamming noise.

JB is now a suspect in a vandalism investigation.

But that wasn't the end of Justin's run in with the law. The cops raided his home last week after the egging incident and arrested his friend Lil Za for possession of cocaine.

In addition to the codeine and promethazine concoction, it has been reported that Bieber is abusing Xanax along with a steady intake of alcohol and weed. Word is his camp is looking into rehab options.