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At what point does being fashionably late become unfashionable? Katy Perry found out the hard way on Thursday, Feb. 20, when she showed up just before 9 p.m. to the Moschino runway presentation at Milan Fashion Week -- and was met with a chorus of boos from some annoyed photographers who had been waiting for her to arrive for almost an hour.

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The show was scheduled to start at 8 p.m. on Corso Venezia, but the "Dark Horse" singer didn't arrive until 8:55. (Fellow pop star Rita Ora made an entrance just 15 minutes earlier, at 8:40.) A source tells Us Weekly that the photographers at the event got "impatient" while waiting and started booing Perry when she came in to pose on the runway for pictures.

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The delay may not have been her fault, though. One insider at the Moschino show told Us "that was the time she was told to come." And another source chalked up the incident to "just getting around the hustle and bustle of fashion week."

In any case, Perry was clearly rattled by the not-so-warm welcome. An onlooker told Us she seemed "upset" throughout the show, and was "pretty shaken up" as she posed for photos with fans afterward.

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At least one person was grateful for Perry's presence, though, late or otherwise: designer Jeremy Scott, who was showcasing his debut collection for Moschino.

"THANK YOU katyperry & @ritaora FOR BEING THE BEST GAL PALS A BOY COULD DREAM OF," he tweeted after the show, alongside a photo of the ladies decked out in his clothes. (Perry wore a black and gold ensemble, while Ora donned a bright blue and yellow frock.) "I LOVE YOU BOTH SO MUCH!!!" he added.


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