Katy Perry Warns Fans She’ll Try to ‘Hold My Composure’ for ‘Not Like the Movies’ Performance ‘a Week Before My Period’

Katy Perry is keeping it real.

On Tuesday, July 15, Perry got candid with fans at the Kia Forum in Inglewood, Calif., during the “Choose Your Own Adventure” segment, in which fans can vote on songs for her to perform.

The results showed “Not Like the Movies,” and Perry — who recently split from Orlando Bloom after nine years together — said to fans, “You’re gonna make me sing this song in this time in my life?”

“OK, we’ll do it! Because you voted for it,” Perry, 40, shouted out, before revealing that fans also voted for “The One That Got Away.”

“I let you choose the song tonight because I like to pick an album for every country that I go to and for the U.S.A., I picked Teenage Dream because U.S.A., you could be a teenage dream baby. You better get it together. I’ll always have that feeling for you,” the “Firework” singer said.

She added of “Not Like the Movies,” “This next song I wrote in my 20s… after my first divorce.”

Then, Perry warned fans she would “try and hold my composure while I sing it a week before my period.”

Perry’s show comes after she attended the Balenciaga haute couture show on July 9. That same day Bloom, 48, shared a carousel of photos on his Instagram, which included a rare family photo of the former couple posing with their 4½-year-old daughter Daisy Dove.

The singer will next perform at the Chase Center in San Francisco on July 18. After her North American run, Perry will travel to South America, Europe, Asia and conclude in Abu Dhabi on Dec. 7. Earlier this week, Perry added an extra date, Nov. 26, in Shanghai after she sold out four shows in China.

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Speaking with PEOPLE ahead of the tour, Perry teased it would be a “celebration of a lot of the songs that people know.”

“I will be introducing people to a few new songs, and I’m calling it Lifetimes Tour because I’m celebrating the whole lifetime of songs thus far,” she said, adding that she would “dust off some deep cuts.”

Describing the tour, the “Dark Horse” singer said it would be a “love-filled spectacle” — and fans needed to come ready to dance the night away.

“We always put together a message in this huge Disneyland-on-wheels type tour. There’s costume changes, there’s acts, there’s dancers, there’s musicians. I’ll fly around the room. There’s no bad seat in the house,” she said of the tour, which is in support of her latest album, 143.