American Idol Katharine McPhee shows off her engagement ring on Instagram 07/23/2018 Katharine McPhee is giving fans a first glimpse of her engagement ring. 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 Smash Scorpion
