John Kerry, who is worth more than $500 million, is the first presidential candidate to sign a prenuptial. Wife Teresa Heinz's motto: "You have to have one."
Donald Trump says that if he were president he'd "have to get a prenup, to save the country." He's now engaged to Melania Knauss.
Because Amy Irving and Steven Spielberg signed a prenup without attorneys, it was thrown out in court. She got half of his earnings during their four-year marriage -- 100 million.
Actress Halle Berry is fighting to uphold her agreement, as ex Eric Benet battles for spousal support.
