Bieber and R&B singer Khalil Amir Sharieff were arrested last week in Miami Beach during what police described as an illegal street drag race between a Lamborghini and a Ferrari.  TORONTO -- Justin Bieber was charged with assault for allegedly hitting a Toronto limousine driver several times in the back of the head last month, just hours after his attorney entered a separate not guilty plea in Florida to drunken-driving and other charges. The Twitter message posted by @JeremyBieber read: "Safe and sound #homesweethome" 
 
 Earlier Wednesday, Bieber's lawyer entered a "not guilty" plea to the Florida charges of DUI, resisting arrest and driving with an expired license, according to court records. Under Florida law, people under the age of 21 are considered driving under the influence if they have a blood-alcohol content of 0.02 or more — a level the 5-foot-9, 140-pound star could reach with one drink." Bieber was briefly jailed in Miami Beach on January 23 after he was stopped by a police officer who said he was drag racing in a Lambourghini on a residential street. Opinion: Money and Justin Bieber's teenage brain 
 
 Toronto assault charge 
 
 Bieber arrived at a Toronto police station for booking Wednesday evening amid a chaotic scene as determined photographers, reporters, screaming fans and the curious converged around his SUV. Toronto police said in late December they were looking into allegations that a member of Bieber's entourage assaulted a limo driver who was ferrying the Canadian pop star and several others. Police said that, during the altercation, one of the passengers hit the limo driver in the back of the head several times. "The driver stopped the limousine, exited the vehicle and called police," a statement said. Bieber left the Toronto police station through a rear exit after about two hours inside Wednesday night. "The Toronto Police Service requested that Justin Bieber appear in Toronto today to face an allegation of assault relating to an incident on December 29, 2013. We anticipate that this matter will be treated as a summary offense, the equivalent of a misdemeanor in the United States," he said in a statement. Howard Weitzman, Bieber's attorney in California, said his client is innocent and declined to comment on the allegations against Bieber or any potential defense, saying it was now a matter for the court to handle. Braun tweeted Wednesday evening, "i ask people to be kind and hope for the best in people. not assume the worst. His arrival at the Toronto police station was no different - the singer debuted a music video for his song "Confident" on Wednesday afternoon, just as news of his expected arrest was breaking. The district attorney will then decide whether a charge will be filed against Bieber. 'Deport Justin Bieber' petition reaches 100,000+ signatures 
 
 CNN's Tory Dunnan, Carolyn Sung, Stephanie Gallman and Susan Candiotti contributed to this report.
– Yet more criminal trouble for Justin Bieber: He turned himself in at a Toronto police station last night, where he was charged with assault and then quickly released, CBS News reports. Police say Biebs and five other people had a limousine pick them up at a nightclub in the city in the wee hours of Dec. 30 (Bieber had earlier attended a Toronto Maple Leafs hockey game, CNN reports), but there was some sort of fight as they were being driven to a hotel. One of the passengers hit the limo driver in the back of the head multiple times, police say, and then left the scene before police got there. It didn't help his case that Bieber failed to show up for a police interview after the incident, reports TMZ, which claims that Bieber, and not a member of his entourage, is the one suspected of actually assaulting the driver. His first court appearance is scheduled for March 10. The assault charge came just hours after his lawyer entered a not guilty plea for Bieber in his DUI-and-drag-racing case from last week (an arraignment is set for Valentine's Day), and he's still facing possible charges over the egging of his neighbor's house. Evidence was presented to the district attorney in that case this week, CNN reports, but prosecutors asked detectives to investigate further. A decision on whether to charge Bieber with felony vandalism could be made by next week. (Not surprisingly, lots of Americans want to see Bieber deported.)