Justin Bieber was all smiles in his mug shot after he was arrested on Thursday morning in Miami Beach, Fla.

When the 19-year-old Never Say Never singer was pulled over at 4 a.m. in a rented yellow Lamborghini, he fired a slew of F-bombs to the officers, according to the police report.

"Why the f-k did you stop me?'' he asked officer Fulgencio Medina. "I ain't got no f--king weapons, why do you have to search me?''

He reportedly also kept repeating, "Why the f--k are you doing this?''

The singer, who was doing almost twice the 30 mph speed limit and described as having "bloodshot eyes," was also incoherent. Initially, Beiber wasn't cooperating with the officers and refused to get out of the vehicle or remove his hands from his pockets.

While he didn't have a valid license, Bieber also failed a sobriety test and was charged with a DUI and drag racing.

His friend/singer Khalil Sharief was also arrested and charged with a DUI.

Late on Wednesday, Sharief, who is signed to Island Def Jam records, tweeted, "Miami nights ridin thru yo city in that hot wheel."

Bieber later told a police officer that he was taking prescription antidepressants and was also smoking marijuana and had a beer some time before the incident, according to the Miami Herald.

The newspaper also noted that the star's entourage blocked traffic on Pine Tree Drive at 26th street to allow the two males to drag race.

The Miami Beach police announced the news of the pop star's arrest on its official Twitter page that day.

"#BreakingNews confirming @justinbieber has been arrested for DUI and Drag Racing more info and press release coming."

Tags: Justin Bieber