Britney to leave rehab early for Kev

Britney Spears will leave her rehab centre earlier than planned, to attend Kevin Federline's birthday party.

The singer is due to be discharged at the end of next week, but has decided to return home two days earlier for the event.

A source at the Promises centre revealed that the choice had been made against the advice of her doctors: "Bosses would have liked her to stay longer."

Federline is celebrating his 29th birthday next week, with a huge party in LA.