Britney Spears has reportedly hired a Kabbalah rabbi to help save her marriage.

The pop singer, who married second husband Kevin Federline in September last year, has enlisted the help of a spiritual advisor to give them counselling after the couple spent the last week in separate beds, reports Internet portal femalefirst.

Britney - who is rumoured to be pregnant - has also asked for mum Lynne's advice as she battles to save her stormy marriage, according to Britain's News of the World newspaper.

A source close to the couple - who are currently staying at a Los Angeles hotel in the US - told the newspaper: "On paper, Britney and Kevin are over. They spend most of their days apart.

"And for a couple who have only been married seven months, it's very odd behaviour for them to be sleeping in separate beds."