All you need is love. And two rich people who don't need each other's money. Paul McCartney and his girlfriend of over four years, Nancy Shevell, are engaged to be married and once again Paul is considering not having a pre-nuptial agreement.

"His friends and business advisers think he's crazy after what happened with his ex, but Paul is insisting Nancy is no Heather," a family insider tells me. "There's no need to make marriage a business arrangement."