Britney Spears has checked out of Promises Rehab Facility in Malibu, CA. just one day after checking in.

The usual stay is 45 days, but celeb snitches have been told Britney suddenly left less than 24 hours after entering the treatment facility. Britney first began rehab at Eric Clapton’s facility in Antigua last week, but left after just twenty-four hours.

Details are developing.