American Idol Katharine McPhee reveals her father's Daniel McPhee death -- "We are completely heartbroken and devastated" 07/17/2018 Katharine McPhee is feeling "heartbroken" in the wake of her father's death. Read More RELATED NEWS Katharine McPhee leaves David Foster tour after "horrible" family tragedy'American Idol' alum Kellie Pickler's husband Kyle Jacobs dead from apparent suicideKatharine McPhee gives birth to first child with David Foster TAGS: American Idol Katharine McPhee David Foster Waitress