Following her purple-haired debut, Katy Perry sported a see-through dress to the Coachella Festival on Saturday. We bet all the men at the shows were delighted, as both she and bestie (and fellow Most Cheatworthy Celeb) Rihanna hit up the best of the bashes.

Perry's long indigo 'do was down in flowing waves with a flowery headband, but we bet most eyes grazed downward at her see-through floral print dress. Perry didn't show off all the goods though, donning black undies and a matching bra under her ensemble, which she completed with black combat boots. Was she going for hippie-war-veteran-vixen? If so, it worked.

This isn't the first time the starlet has sported see-through clothing with opaque underpinnings. Remember her mint green malfunction from last month?

'You da One' singer Rihanna was also in attendance, rocking her new black hair with red lipstick and a bright blue baseball cap and denim jacket. The Sun reports that RiRi was on hand to check out David Guetta, with whom she collaborated on 'Who's That Chick.' Despite pretty much being on top of the world, Rihanna barely cracked a smile, instead focusing on looking fierce.

RiRi also tweeted that she was checking out ASAP Rocky at the festival. No word on whether the two ladies actually hit up any parties together, but we're betting they did!