Sam, Adnan, OMG who? They kept asking her "Are you ok Britney?" while she was crying and she was like "Could you please go away" and sniffling. More stuff is goin down... look here

TMZ was there as Britney and constant companion Sam Lutfi got into what we're told was a huge, "really ugly" blowout.

Britney and Sam drove up to the gate of her house when she suddenly jumped out of the car crying -- why we're not sure. Britney's paparazzo boyfriend Adnan Ghalib tells TMZ he got a frantic call from a hysterical Brit at that moment, pleading with him "Baby, can you come pick me up??" Adnan told us he told her to go into her house and he would be right over. When he arrived, however, he was told in no uncertain terms that he was not allowed to enter the gate -- the guards were under strict orders from Sam not to let him in. He's tried calling each of her six cell phones and the house phone, but she's not answering.

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