HOLLYWOOD - Kevin Federline has visited his estranged wife Britney Spears in rehab.
The rapper, who reportedly took part in an intervention to persuade the troubled superstar to seek help for unspecified problems, paid the pop star a visit at the Promises treatment center in Malibu, California.
Federline is reportedly looking after the couple's two sons while his estranged wife is seeking help.
A source close to the couple tells People magazine, "He cares a lot about her."
The insider claims Federline spent 90 minutes at Promises.
A friend of Federline's adds, "Britney scared everyone pretty bad. Kevin is worried that's for sure. Kevin just wants her to be OK."
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