American Idol Katy Perry honors late friend and mentor: "I am incredibly grateful" 11/30/2018 Katy Perry is mourning her friend and mentor Angelica Cob-Baehler. Read More RELATED NEWS 'American Idol' couple Gabby Barrett and Cade Foehner expecting their first childKaty Perry honors late friend and mentor: "I am incredibly grateful"Bobby Bones joins 'American Idol' as in-house mentor for Season 17 TAGS: American Idol Katy Perry
