Katy Perry continues to be bold, brave and fun as she arrived during the Coachella 2012 Festival wearing a see-through dress.

It revealed all her undies underneath and it was topped off by some kind of frock in floral design attached near her chest.

The singer is all prepped up for the entire event as she was seen wearing heavy duty high boots. She even tweeted to express how much she enjoyed the music bash. As a matter of fact, the 27-year-old pop star was just one of the celebrities who were spotted during the event.

Katy's known best friend, Rihanna, was also seen around wearing a DJ David Guetta cap. There was also Emma Watson in her tiger print frock with a floppy hat on the head. The actress was even cozying up with another Hollywood friend Lily Collins, since the former 'Harry Potter' star was around Los Angeles to shoot a new movie entitled 'The Bling Ring.'

Noel Gallagher was another Brit spotted around, and was heard playingsome old school Oasis classic such as 'Don't Look Back in Anger.' Vanessa Hudgens was also around wearing the native Indian outfit. But the biggest brits to grace the event were the members of the award-winning rock elite, Radiohead, who delivered a 20-song set that fulfilled all musical fantasies of those who attended.

Going back to Katy Perry, the 'Part of Me' singer certainly took the time to just act and enjoy the event as ordinary people. During the first day of the Coachella Festival, she showed a gothic outfit by seemingly looking like a teenage witch way back from the 90's.

Other stars spotted enjoying the festival was Paris Hilton, who like Katy, has let her hair down.

Check the slideshow for more captured highlights from the event!

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