Katy Perry hit Coachella festival wearing a see-through dress with her bra and big knickers proudly on display but would you dare to wear her outfit?

When you’re best pals with Rihanna you’ve really got to pull it out of the bag to out-raunch her.

Here, Katy Perry manages to look both sexy and sweet in this grungey get-up.

The singer wore a floral see-through maxi dress which revealed her black bra and high-waisted matching knickers.

She teamed this up with lace-up black boots and wore a large red flower on her chest.

Perry also wore a floral garland in her tumbling purple locks.

She tweeted: ‘Today’s lewk [sic] is sponsored by courtney love, virgin suicides & fern gully #nymph.’

The singer was seen crowd-surfing at the music bash in Indio, California and holding hands with RiRi.

She later told fans: ‘Enjoying music so much this wknd!’

And even though she wasn’t performing with risque outfits like this Perry made sure she was the talk of Coachella.