BRITNEY HEADED TO MENTAL HOSPITAL.. BUT WHEN?

Friends close to Britney Spears are allegedly pushing for the psychiatric evaluation she has long resisted, and Britney might be listening. They say she knows she's losing it and she wants help but doesn't want to look crazy in the eyes of her fans...too late Brit.

Recently, she's alarmed everyone around her with her bizarre behavior, like taking on different personalities and claiming to not know boytoy photog Adnan Ghalib.

Yesterday's chaotic fiasco was no exception. She bailed on the emergency custody hearing she requested after just an hour, telling officials inside the courthouse that she wanted to go home. But home was not on on her mind, so instead of heading to her Beverly Hills pad, she drove to a local PetCo with a massive paparazzi entourage in tow. With a new assistant in the car, she pulled up to the store but decided she didn't want to go inside, telling cameramen, "I don't like this." Britney then sped away driving on Sunset at speeds near 100 mph and on the wrong side of the road. But she had to go back to Petco -- WHY??,, to pick up her new assistant, who had been forgotten on the first stop.