American Idol 'American Idol's Katharine McPhee engaged to David Foster! 07/05/2018 Former American Idol finalist Katharine McPhee is going to be record producer David Foster's bride. Read More RELATED NEWS 'American Idol' alum Mandisa's cause of death revealed'American Idol' alum Mandisa dead at age 47Katharine McPhee leaves David Foster tour after "horrible" family tragedy TAGS: American Idol The Real Housewives The Real Housewives of Beverly Hills Taylor Hicks Katharine McPhee Linda Thompson Michael Morris Elyes Gabel David Foster
