American Idol 'American Idol' alum Mandisa dead at age 47 04/22/2024 American Idol alum Mandisa has passed away at age 47. Read More RELATED NEWS 'American Idol' alum Mandisa dead at age 47Katharine McPhee leaves David Foster tour after "horrible" family tragedy'American Idol' alum Kellie Pickler's husband Kyle Jacobs dead from apparent suicide TAGS: American Idol True Beauty Simon Cowell Jennifer Hudson Mandisa Hundley Ryan Seacrest