Cob-Baehler played a pivotal role in the singer's career, bringing her to Columbia Records and helping developing her into a star.
Katy Perry posted a tribute to late music executive Angelica Cob-Baehler on Tuesday (Nov. 27), calling her former collaborator "one of my biggest champions and realest friends."
Cob-Baehler died on Nov. 21 at the age of 47, following a year-long battle with cancer. She was instrumental in discovering and developing acts -- most notably Perry -- and over her 25-year career worked with artists including Stone Temple Pilots, John Mayer, Death Grips, System of a Down and 30 Seconds to Mars.
"Six days ago, one of my biggest champions and realest friends, Angelica Cob-Baehler moved on from this place. She was one of the strongest women I have ever known - fighting her cancer like friggin' Rocky, enduring chemo, immunotherapy, a tracheotomy, feeding tubes for months on end, and experimental cancer treatment trials," Perry wrote in her post, including number of photos of her and Cob-Baehler together. "I watched her go through many stages for over a year, but a few things remained constant: her sarcastic/wicked sense of humor, her positive outlook, and the incredible love she had for her family."