Spears agrees to pre-nup

Britney Spears has finally caved in to her family's demand that she get fiance Kevin Federline to sign a pre-nuptial agreement.

The Oops!...I did it again singer, 22, horrified her protective parents Jamie and Lynne when she insisted her marriage would be based on true love and therefore she didn't need to protect her vast wealth.

But now Britney has reconsidered her position and sources say the paperwork is now being drawn up, ahead of the couple's lavish November 20 wedding.

A source tells America's Star magazine: "They will definitely sign a pre-nup."

Federline - who is currently unemployed - is celebrating becoming a father again, following the birth of his second child with ex-love Shar Jackson on Wednesday