The singer posted an Instagram of the procedure Friday

By Michele Corriston
Updated August 17, 2014 04:00 PM
Credit: Brett Costello/Newspix/Getty

Katy Perry spent “Last Friday Night” getting her nose pierced – for all the world to see.

The pop star posted an Instagram video of the painful process, showing a long needle going through her nose as she cried, “Ow!”

“Last time I did this I was on my own with a safety pin & cube of ice @ 13,” she captioned the clip. “This time I thought it was best I left it to the pro’s. Sorry mom (again).”

They say pretty hurts, but maybe Perry, 29, just needed to listen to the soothing sounds of her own hit, “Dark Horse,” to calm herself down during the piercing. Hey, it worked for this crying baby.

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