American Idol Katharine McPhee marries David Foster in London 07/01/2019 Katharine McPhee has married music mogul David Foster in London. 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 Katharine McPhee David Foster
