American Idol Katharine McPhee to star in Broadway's 'Waitress' beginning April 10 02/16/2018 Katharine McPhee has been tapped to play the role of Jenna in the Broadway musical Waitress. 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 Sara Bareilles Jessie Mueller Adrienne Shelly Scorpion Waitress
