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Katy Perry

Frazer Harrison/Getty Images

Alert the fashion police, because we have an offender right here!

Who told the beautiful Katy Perry that it was a good idea to hide her glam self in an outfit that resembles old curtains?

The "Roar" singer caught everyone's attention on the red carpet of a Grammys event honoring The Beatles in Los Angeles on Monday, Jan. 27—and not in a good way.

Out of all of the gorgeous gowns that the lovely singer undoubtedly had to choose from, Perry opted to wear a floral Dolce & Gabbana gown that was an unflattering mix of drapes and a cape.

Perry proudly paraded around on the arm of John Mayer throughout the evening affair.

But even he seemed reluctant about getting too close to the unfortunately shiny ensemble. It seems as though the gorgeous 29-year-old hasn't been hitting the fashion high notes lately.

At the Grammys, the star stepped out in a sheer Valentino gown with musical notes printed along the bottom. Okay, A for effort—maybe even an A+ for appropriateness—but still.

She then changed into a witch-themed hot little number for her "Dark Horse" performance.

Perry rocked a crop top with a red cross on it, lace tights and a sheer skirt while she twerked and showed off her best stripper moves on a witches broom. Yep, that happened.

What do you think of her latest outfit? Tell us in the comments section below!

PHOTOS: Katy Perry's top style moments