David Foster and Katharine McPhee's love story defies the ages

David Foster and Katharine McPhee just welcomed baby Rennie David Foster to the world. The May-December couple -- she’s 37 and he’s 71 -- have been pals since her “American Idol” days. After both divorcing previous spouses, Foster and McPhee started making sweet music together and tied the knot in London in 2019. Find out...