Katy Perry is on the cover of Marie Claire's January 2014 issue where she opened up about her ex-husband Russell Brand and current beau John Mayer.

"There were two weeks of my life after I found out the truth of my marriage where I was like, 'OK. All right. I can't feel this. This is too intense right now.' I was, like, just eating Flamin' Hot Cheetos and drinking, and that's it," she said about Brand, whom she divorced in 2012.

Following her divorce, the Roar singer began dating Mayer in August 2012. Despite their split in March, Mayer and Perry have rekindled their romance. Perry explained what prompted the split.

John Mayer & Katy Perry Who You Love Duet & Single Cover

"I took a break from my boyfriend, not one that I wanted. It was like a splash of cold water to search inward on what was going on with me," she said. "That is what let me to this new awakening, this realizing, If I don't do some self-love, I'm not going to be able to keep the love that I want."

She explained that she simply needed time to deal with the divorce and added: "It's almost like if I kept talking about it, it would seem like I actually cared about it. I don't."

Perry also revealed that her ex-husband really wanted her to have children, however, she "wasn't ready."

"I think it was a way of control. I think it was part of, If I have a kid, then I would have to sacrifice - I'd have to be home more," she said. "I really wanted to, but I knew I wasn't ready for it. It wasn't like, 'Hey, let's have a kid because we're in love.'"