The singer made her semi-naked entrance at the event during Haute Couture Fashion Week -- and it was hard for anyone to keep their eyes off of her.

Katy just sizzled, showing off a lot of skin from the waist up, while wearing a long fur coat, leggings, boots and sunglasses. To top it off, her body was in perfect shape as she flaunted her rock-hard abs for the paparazzi.

A throng of other celebs also arrived at the gala ... notably, Nicole Kidman, Anna Wintour, Naomi Watts, Ashley Graham, Michelle Yeoh, Kerry Washington, Teyana Taylor and Lisa Rinna.

But, none of those stars exuded Katy's sexual power, which mirrored that of Censori, the wife of Kanye West. As everyone already knows, Bianca's style always involves some form of nudity, so no need for further explanation.

Meanwhile, on Tuesday, Katy sported a different look around Paris, hitting the streets in a Balenciaga dress emblazoned with the lyrics to her new tune, "Woman's World."