Britney Spears was just wheeled out of her home on a gurney by paramedics. Britney is being taken to a local hospital on a "medical hold." This means Britney is being held for an involuntary mental health evaluation. Cops said Britney was “under the influence of an unknown substance.” Probably because she was acting crazy, so they would like to believe it was the drugs that made her act that way, however, they sent her for a mental health evaluation just to be on the safe side.

Mental health professionals can hold a person against their will for up to 72 hours while they evaluate them. A personal can be sent for an involuntary mental health evaluation if the person threatens to harm themselves, another person, or property.

Britney Spears is in big trouble. Mark Vincent Kaplan is going to have an emergency hearing to put more restrictions on Britney’s custody rights after all this went down. TMZ reports:

LAPD has been called to Britney Spears’ house in Beverly Hills for what we’re being told is a "family custody dispute."

LAPD tells us the call came in around 8:00 PM PT this evening, but they would not tell us who made the call or what the specific problem was. Officers, we’re told, are still on scene.

Spears, who was nearly two hours late for today’s scheduled deposition in her custody case, was reportedly scheduled to have her sons tonight until 7:00 PM.

Us is reporting K-Fed’s bodyguards went to pick up Sean and Jayden at Britney’s home this evening after her scheduled visitation, but Spears refused to turn the kids over. Police were then called. Britney’s soon-to-be ex- attorney Sorrell Trope told the mag, "In a normal case when someone shows up with a certified court order saying the kids need to be somewhere else, the police see to it that the order is obeyed. But that is in a normal case."

Another ambulance, more fire trucks and several additional police cars have just rolled up to Britney’s house. One person on the ground described the situation to us as "scary."

TMZ is at Britney’s house in Beverly Hills as several more police cars, fire trucks, an ambulance and a police chopper have now all descended on the popwreck’s humble abode. Don’t let ’em git me!!

We’ve learned Spears has refused to turn her two sons back over to their daddy tonight, as ordered by the court. LAPD tells us they’ve been called to the home to deal with the family custody dispute.

Sources confirm to TMZ that K-Fed’s attorney Mark Vincent Kaplan was at Britney’s home earlier, but has since left.

Britney needs to listen to her lawyers, but she won’t because she knows everything.

LAPD Officer Lee says that police are trying to resolve the family custodial issue. Mark Vincent Kaplan and Anne Kiley were present at Britney’s house and said Britney was “hysterical and just wants to keep the kids overnight.” Sources told Page Six, "someone is being transferred to the hospital for a mental evaluation." Mental health professionals can hold a person against their will for up to 72 hours while they evaluate them. A personal can be sent for an involuntary mental health evaluation if the person threatens to harm themselves, another person, or property.

The kids are safe, and back in Kevin Federline’s custody. Cops said Britney was “under the influence of an unknown substance.” The commissioner will not be happy.

OMG!

Click here to watch as the whole thing goes down live!

Britney Spears spent 45 minutes total answering questions by Mark Vincent Kaplan for her divorce deposition. Word is Britney will return at a later date to finish answering questions. Some people complain of low blood sugar when they haven’t eaten, but during the depo Britney probably had low body fat and needed to go hit the McDonalds drive-thru. Just as I said earlier, Britney couldn’t handle sitting through hours of questions. She just can’t sit still that long. Just wait until the trial.

Mark Vincent Kaplan explained the brevity of questioning, the depo was originally scheduled to go from 9:45 to 11:45 AM. It poses a little bit of a problem when the person who is to be deposed shows up almost two hours late. Kaplan says the proceedings started around 11:32 AM, and he was able to fire off a few questions before having to end at the scheduled time, thirteen minutes later. Britney was more than a half day late for court. Thirteen is Britney’s lucky number.

No word yet on why Britney was so late … again. I’m sure she’ll come up with another lie excuse.

It’s a New Year’s miracle. Britney Spears showed up today for a deposition with Mark Vincent Kaplan, Kevin Federline’s divorce attorney. Britney’s attorneys filed a motion to withdraw from representing her. The deposition is expected to take hours, and without a burger and fries, or at least a vente Starbucks with extra heavy whipping cream, Britney might crack under the pressure and leave before the deposition is finished. I’d love to see video of the depo. This was Britney’s sixth deposition appointment. If she had not shown up, the commissioner could have found her in contempt of court, which could have resulted in a fine, or worse, jail time.

Adnan Ghalib (35) checked into the Parker Hotel in Palm Springs with Britney Spears around 2 a.m. on January 2, and then checked out around 7 a.m. Last week, Ghalib comforted her at the Peninsula Hotel in Beverly Hills.

Britney for the fifth time did not show up for a deposition requested in her divorce case by Mark Vincent Kaplan, Kevin Federline’s attorney, which means Britney may be held in contempt of court since she was ordered to be there. Now attorney Tara Scott from Trope and Trope wrote, "There has been a breakdown in communications between [Britney] and Trope and Trope making further representation of her interests impossible." Britney’s attorneys requested to withdraw from representing Britney since she won’t listen to them, and her case can’t be won any longer. For now the attorneys will have to wait for the court to rule on their request to withdraw, so Britney still has a legal team … technically.

Looks like Britney will have plenty of time to spend partying, and checking in and out of hotels with whomever she wants. Her mother must be so proud, but her little sister Jaime Lynn sells more magazine being pregnant at 16 years-old. Get ready for someone sister rivalry.

Update: Britney was driving around Los Angeles during the time she was supposed to be at her deposition. If the court sees this video she’ll be found in contempt for sure.