Justin Bieber's bad behavior has been well-documented in the media, but most recently he got extra personal with a certain fan during a concert, rubbing an audience member's cell phone on his genitals before tossing it back into the crowd, Gawker reports.

Fans tossed increasingly strange things for the star to fondle during his Tuesday night concert at Newark's Prudential Center, and after Bieber briefly stopped the show to ask fans to "refrain" from throwing things at him, the next item that landed on stage caused things to take a bizarre turn.

In a new fan video posted to YouTube, Bieber grabs he smartphone and puts it down his pants before taking it back out and tossing it into the audience.

"That was not a good tactic to get girls to stop throwing stuff on stage haha," one YouTube user noted in the comments. "Now everyone's going to want their phone in his pants." It certainly seems likely that Bieber's adoring fans (many of them young teens) would covet the phone that had come into contact with their idol's crotch, strange though it may be.

While it's far from the most scandalous thing he's ever done, it does mark part of a turning point in the singer's career as he goes from sweet and innocent cutie pie to raunchy "bad boy" pop star with an afficiando for peeing in mop buckets, spitting on fans (which his reps vehemently deny) and reckless driving.

Even his manager, Scooter Braun, has reportedly advised the 19-year old to take a break and check into rehab for a bit. Whether it's for his bizarre behavior or alleged drug use (drugs were found in the singer's tour bus recently), it remains clear that many are starting to find Bieber's latest antics more distasteful than funny.

Go to the 1:15 minute mark in the video below to see Bieber's phone-down-the-pants shenanigans.