American Idol Katharine McPhee on rumored boyfriend David Foster: "People can say whatever they want" 11/08/2017 Katharine McPhee is opening up about rumored boyfriend David Foster. 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 Elyes Gabel David Foster Scorpion
