Katy Perry has been shamed for going braless as she shows off her weight loss in a slinky, glittery dress and heels.

Katy Perry left little to the imagination ... gown during a surprise appearance at Place Vendôme. Perry, 39, turned heads in the cut-out number which featured geometric print designs stitched ...

Katy Perry is stunning in her plunging corset dress as she goes braless for dinner in Paris with some very famous faces.

The partner of Orlando Bloom showcased her impeccable figure in a flowing, shimmering silver dress paired with a matching hat, while keeping her makeup natural. Katy Perry fans raging at manager ...

It's still not quite warm enough out ... side cut-outs spanning pretty much the entire length of Katy's torso and an additional key-hole cut-out at her stomach. However, it was at the dress ...

Katy Perry has been, uh, kinda busy ... Drew Barrymore and Gwyneth Paltrow, but Katy's dress was still among the most show-stopping. Specifically, she was rocking a silver, sparkling dress ...

arms cuffs and a high-neck bra top with a heart cut-out. Kevin Mazur/Getty Images for Katy Perry Perry paid homade to another iconic look of hers during the show, wearing a latex mini dress with ...

Katy Perry has gone ... neck bra top with a heart cut-out. Perry paid homage to another iconic past look of hers during the show, wearing a sheer gray latex mini dress complete with peppermint ...

Katy Perry stole the show at her latest red carpet ... singer flaunted her flawless curves in a flowing, shimmery silver dress paired with a matching hat, and kept her makeup natural.