Julia Roberts has offered Britney Spears a safe house during the troubled singer's ongoing child custody battle with ex-husband KEVIN FEDERLINE. The Oscar winner believes Spears needs some time out of the limelight, so she can recuperate - and Roberts knows the perfect place. She tells American magazine Vanity Fair, "I see and hear what's happening to Britney Spears and it's all I can do not to move her into my guesthouse and say, 'OK, this is how it's going to be.' And just take care of her."