American Idol Katharine McPhee gives birth to first child with David Foster 02/28/2021 Katharine McPhee has become a mother. Read More RELATED NEWS Katharine McPhee gives birth to first child with David FosterKatharine McPhee marries David Foster in LondonKatharine McPhee postpones 'Fall in Love' tour due to "extreme vocal fatigue" TAGS: American Idol Katharine McPhee Linda Thompson David Foster Smash Scorpion