Content warning: This post contains mentions of suicide, and may be triggering for some readers.
The American singer shared in a new interview that she ended her relationship with the British actor after her album, Witness, failed commercially, selling less than a tenth of her previous album, Prism.
"My career was on this trajectory when it was going up, up and up and then I had the smallest shift, not that huge from an outside perspective. But for me it was seismic," the 35-year-old recalled.
"I had given so much out, and it literally broke me in half," she added.
"I had broken up with my boyfriend, who is now my baby daddy-to-be.
"And then I was excited about flying high off the next record.
"But the validation did not make me high, and so I just crashed."
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The singer went on to explain that her faith helped her through the difficult period.
"It was so important for me to be broken so that I could find my wholeness in a whole other way," she said.
"Gratitude is probably the thing that saved my life, because if I did not find that I would have wallowed in my own sadness and probably just jumped."
Amid Perry's new interview, we look back at her tumultuous life in the spotlight.
A unique upbringing.
Katy Perry was born as Katheryn Elizabeth Hudson on October 25, 1984.
Perry, who has an older sister and a younger brother, was raised by two religious pastors, Mary Christine and Maurice Keith Hudson.
After having a "wild youth", which involved Perry's mother dating Jimi Hendrix, Mary and Maurice describe themselves as a "dynamic couple" of "prophet/evangelists".
Over the years, Perry has opened up about her unique and often difficult upbringing.