As you know, Justin Bieber was arrested for D.U.I. early this morning in Miami (AND for resisting arrest, drag racing and driving on an expired license), and new details have emerged about his bad behavior when police pulled him over.

When cops arrived at the scene Bieber started swearing at them and would not cooperate, and according to the police report, when cops approached Bieber's rented yellow Lamborghini, they smelled alcohol and noticed that the 19-year-old pop star's eyes were bloodshot. Though Biebs reportedly had a look of "stupor" on his face, he immediately got aggressive and said, "Why the f*ck are you doing this? What the f*ck did I do. Why did you stop me?" When the officer then tried to perform a routine pat down, Bieber said, "I ain't got no f*cking weapons, why do you have to search me? What the f*ck is this about?"

And not only is he not of legal drinking age, but Bieber lied to the police as well! He apparently claimed he was NOT drunk and he was simply coming back from recording music. However, Bieber had just left SET nightclub, and there are multiple photos of him at the club online, so we're wondering if he's going to get in trouble for that too.

So what happened with the resisting arrest charge? Before the pat down, Bieber reportedly got out of the car and he "kept going into his pants pocket." The cop ordered the singer to put his hands on the vehicle, and though Bieber initially complied, he quickly took his hands off the car, turned around and swore at the cop. The cop then grabbed Bieber by the right arm, at which point he pulled his arm away, and said, "What the f*ck are you doing?"

Bieber was reportedly driving between 55 and 60mph in a 30mph residential area, and he is still in custody. Bieber reportedly failed the field sobriety test at the scene, so it's assumed that he will undergo further testing, and then he will be booked and processed and bail will be set. We're dying to know what his blood alcohol level was ... and if there's any video of this from the dash cam!

While Bieber narrowly avoided getting arrested last week during a police raid at his Calabasas mansion, his friend Lil Za was taken into custody for drug possession, and it was revealed that cops found evidence of codeine and marijuana use during their search of the residence. Bieber's team (well, most of them) are reportedly urging the star to check in to rehab, so maybe this will be the push he needs?

When we polled our X17 readers last week, 74% of you think he should seek treatment ASAP, 12% of you think he's just "young and misbehaving," and 13% of you say it won't make a difference either way...