The singer says she was able to channel all of that negative energy on to her new album, especially for the song "By the Grace of God."
Regarding the song, Katy explains, "you don't have to really read between the lines, there is a lot of heavy material there," and she's definitely right...the song is pretty intense.
Now, Katy is revealing a little more about exactly what she went through during that time, telling the UK's Sunday Times that she stayed in bed for two weeks after she was blindsided by divorce papers from Russell....and that isn't even the worst of it.
Watch the video above to hear more from Katy's emotional interview.
Want More? Like us on Facebook
Gallery | Katy Perry's Red Carpet Style