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Katy Perry, Travis McCoy

MJ Kim/Getty Images

Katy Perry is hurting.

The typically perky pop princess didn’t hide her feelings about her split from boyfriend Travis McCoy during an acoustic performance last night at L.A.'s Hotel Café.

Katy came clean while explaining the inspiration for her new single, "Thinking of You."

“It means a lot to me,” Perry said of the song. “It's one of those slit your wrists songs, like one of those R. Kelly songs like real talk. Like when you break up with somebody and you don't wanna move on, but you have to move on."

She continued: "And sometimes you find yourself making out with somebody else and you feel like you're cheating. But you're not cheating because you're broken up. And I know being a girl, I've had sex with a guy, and been thinking about a different guy the whole time. That's real talk. And even though you're broken up, it still feels like cheating. And it hurts right now."

Perry and McCoy, the lead singer of Gym Class Heroes, called it quits just before New Year's after dating for about a year.

Perry, who went on with the show despite suffering from a nasty cold, also performed a heartfelt tune that included the lyrics, “You know I loved you, you know I loved you, you know I loved you. Someday I wanna be a missus, but it's not yet quite right."

She then likened men to artichokes. “Leafy on the outside,” Perry said, “and after a lot of leaves are pulled, maybe there’s a heart.”

After the show, Perry told us she can’t help but open up on stage.

"Anytime I do music, I do it all from the heart,” she said. “I don't hold back."

—Additional reporting by Dahvi Shira