Third Times a Charm for Britney (Hopefully)

For the third time in one week, Britney Spears has checked into rehab, and I hope for her sake that she stays put this time. She has checked back into Promises rehab center in Malibu, after her ex, Kevin Federline, called an emergency custody hearing, That hearing was subsequently cancelled after Spears re-entered the rehab facility. It isn't known if cancelling the hearing had anything directly to do with Brit's rehab stay.

Sources tell TMZ Federline is concerned for Spears' welfare and wants her to get the help she is now seeking. We're also told this will be Spears' last chance -- if she leaves rehab before getting full treatment, Federline will immediately go to court seeking orders allowing him unquestioned full custody of the children.

We're told Spears showed up at Federline's house to see the children last night and he wouldn't let her in.

Sources say the kids are now in the custody of Federline, and have been since last week.

Source