Britney Spears was released from a hospital psychiatric ward on Wednesday, six days after being admitted amid concerns for her mental health, the Los Angeles Times reported.
The Times report said the troubled singer made a low-key departure from the UCLA Medical Center accompanied by private security guards.
It was not clear where Spears was heading, but sources told the newspaper she may go to one of her homes before seeking further treatment.
Spears had initially been detained under a mental health evaluation order after being whisked from her home by a convoy of paramedic and police vehicles early last Thursday on the recommendation of her psychiatrist.
Reports last weekend said Spears had her stay at the medical center extended by two weeks but the singer could legally demand to be released or go home if a doctor judged her suitable for outpatient treatment.
It was the second mental health scare for Spears in less than a month after she was rushed to hospital in early January by paramedics following a child custody stand-off with the her ex-husband Kevin Federline.
A judge limited Spears' access to her children last October after she failed to submit to random drug testing as demanded at an earlier hearing where the court ruled she was a "habitual and continuous drug user."
Spears has been rarely out of the tabloid headlines since her split from Federline in late 2006.
She was repeatedly photographed out partying while wearing no underwear, bizarrely shaved her head at a public salon, and attacked a paparazzi's car with an umbrella before finally entering rehab.