She’ll cry about it later.

Katy Perry showed off her brutally scraped knees she sustained while dancing on her “Lifetimes” tour in her Friday Instagram post .

Among a lengthy collection of photos reflecting on her recent months spent on the road, Perry shared a photo of her legs with a set of nasty bruises and scrapes as she relaxed in a tub.

In her follow-up photo, she explained how she managed to get the injuries with a screenshot of her text conversation with her friend Lauren Glucksman.

“It was a slide on my knees mome[nt] that usually makes them go ahhh and it just made me go arghh,” the “Dark Horse” hitmaker, 40, wrote to Gluckman.

The gal pal quipped back: “And just like that she’s in her 40s.”

The injury isn’t the first bump in the road, the singer’s faced on her world tour

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