Federline admits marriage troubles

Kevin Federline has confessed his marriage to Britney Spears needs work, ahead of the birth of their second child next month.

The celebrity couple's marriage has reportedly been on the rocks since son Sean Preston was born last year.

And now the aspiring rapper admits their union is far from perfect, as the busy pair spend little time together.

He says, "It's definitely going to be hard. It'll have to be worked at, but that's every relationship."