Katy Perry rocks a see through frock!

That’s right, the pop princess stepped out at California’s Coachella festival with black underwear on display through her sheer dress.

The floral frock, which was reminiscent of the sixties, was coupled with a red poppy brooch, and a flower garland, which rested on her head.

The flower power pop star definitely stole the show in her revealing outfit, rock on Katy!