angrily taking aim at a car with an umbrella, reportedly outside the house where estranged husband Kevin Federline is staying.
in one week , the singer, dressed in white shorts and a hooded jumper, was snapped repeatedly striking the vehicle, according to US TV shows The Insider and Entertainment Tonight.
She was said to have spent 45 minutes outside the residence, her to the Promises Malibu Treatment Centre.
Spears' manager confirmed she was back in rehab.
amid a child custody dispute with Spears was cancelled.
in rehabilitation, a program that takes between 30 and 45 days.
Vincent Kaplan, who represents Federline, had called the court bailiff and asked to cancel the court appearance. Parachini gave no explanation for the cancellation.
planned to raise.
with hands-on management," said a statement from Kaplan, read by his publicist Michael Sands.
The events came amid increasingly bizarre behaviour by Spears, of two rehab centres in a week and shaving her head bald.
James, five months, and Sean Preston, 17 months, after Spears moved to end their two-year marriage in November, but a temporary order issued February 1 granted joint custody through this month.
Spears previously left the Promises centre yesterday, according to The Insider, less than a day after arriving. The centre specialises in treating drug and alcohol abuse.
Last week, she reportedly sought treatment at a centre in the Caribbean but also checked out after a day.
The next day, she arrived at a San Fernando Valley hair salon, grabbed an electric razor and shaved her head bald. Afterward, she visited a tattoo parlour, where she had a pair of red-and-pink lips inked onto her wrist. Then she went out clubbing with friends before apparently checking into Promises.
hard to say, said Vibe magazine music editor Jon Caramanica.
more than 13 million copies, hasn't released a new album since 2003.