The Swish Swish singer no doubt caused jaws to drop at the Byron Allen Oscar Gala Performance Party in Los Angeles, California, on Sunday.

Taking the red carpet by storm, Katy Perry arrived in a bedazzled chainmail gown, which showed more skin than it covered.

Daring to put her cleavage on full display, the 33-year-old opted to go braless in the sinfully low-cut number.

With her assets spilling out of the tighter-than-skin design, Perry let her nude ambition antics take centre stage.

And while her cleavage was on full display as she faced the camera head-on, the California native also paraded her sideboob when she posed for the photographers.

Fully embracing the barely-there ensemble, the bombshell flaunted her killer curves in the figure-hugging outfit.

Putting Kim Kardashian, 37, in the corner, the ex-wife of Brit comedian Russell Brand, 42, turned round to reveal her perky derrière.

Allowing her striking wardrobe statement to take pride of place, Katy resisted the urge to add too many accessories.

Instead, she rocked a simple pair of diamond earrings and two statement rings.

Making a hair and beauty statement, the Roar songstress styled her platinum blonde locks in a chic quiff updo.

She completed the bombshell look with larger-than-life false lashes, defined eyebrows and a shimmery pink lip.

Despite stopping traffic with her appearance, Katy didn’t spend too long on the red carpet, as she headed inside to entertain her fellow guests with a showstopping performance.

Switching up her look for her singing spectacular, the Los Angeles dweller sported a pink jumpsuit adorned with sequins.

Having paired the 70s-inspired outfit with a pair of silver-platform boots, Perry looked like the ultimate disco diva as she belted out some of her biggest hits to the industry crowd.

If there was an Oscar award for the best on-stage presence, we reckon Katy would go home a winner.