David Foster and Katharine McPhee
This celebrity couple, who met on American Idol where McPhee was a contestant, boasts a combined net worth of $164 million. Foster, significantly older, welcomed his sixth child, a son named Rennie David, in 2021, adding to his five daughters.
Foster and McPhee met in 2006 on American Idol and became friends. Foster played the piano at McPhee's first wedding. They confirmed their relationship in 2018, married a year later, and remain happily together.