Katy Perry Goes Out On A Date Without Underwear In Sheer Floral Skirt -- See Sexy Pics

Katy Perry said "Adios!" to her underwear as she hit the red carpet at the 28th Annual ARIA Awards in Sydney, Australia on Wednesday.

Donning a custom Jamie Lee halter top and a completely sheer netted skirt with floral embellishments, the "Dark Horse" singer flaunted her killer curves and a whole lotta thigh. 

The brunette beauty added a touch of her funky signature style with purple pumps, a knotted metallic blue headscarf by A-Esque and a bold dark lip.

The pop princess isn't the only star to go commando on the red carpet!

Alessandra Ambrosio, Gwyneth Paltrow, Jaimie Alexander, Kendall Jenner and Maggie Q (to name a few!) have all gone without underwear to a high-profile event.  

What do you think of Katy's see-through ensemble?