Bruce Glikas/WireImage David Foster ... Katharine McPhee, whom he married in 2019. Also in attendance were three of the 75-year-old musician's children — daughters Amy S. Foster, 51, Sara ...

Katharine McPhee and David Foster are marking a year of milestones together. In March, the American Idol alum celebrated her 40th birthday. In June, the couple commemorated their fifth wedding ...

Foster is hitting the road with Katharine McPhee, their 4-year-old son David Foster, left, and Katharine McPhee have introduced their son to the original Betty Boop cartoons: "He truly loves them!" ...