Katy Perry arrives at radio one on Sept. 2, 2010, in London alongside FredFlare's polka-dot Katy dress, a fabric brooch from Avalaya and a belt by J. Crew. Photo: Jack/FilmMagic We love it when a fashionista takes a garment and makes it her own. Which is exactly what Katy Perry did with this...

offering up some fool-proof outfit ideas that will have you turning heads (and we do mean a full Exorcist-style 360; it is Halloween after all). While she may have opted for normal human clothes while concentrating on a full-blown skeleton face for her own costume, Katy Perry's day-to-day...

Perry's (which is essentially just a discolored heart on a headband). But the best thing about this costume is that everything is assembled for you, so it takes virtually no effort—except for maybe some preparatory crunches, of course. You can get the Katy Perry California Gurl Halloween...

While you probably can't get your hands on Katy's custom Versace patchwork denim maxi, why not try putting together the look yourself? We're here to help you with that. Click the slideshow to shop everything you'll need for the most meta Halloween costume ever:you as Katy Perry as Britney...

It's the month of October and Halloween is around the corner. Deciding on a Halloween costume can be time consuming. Why not dress up like Katy Perry? Katy Perry's movie theater look, which she debuted back in June is a perfect Halloween costume. For the top, choose a striped cropped top or...

It's no secret that Katy Perry loves Halloween. She loves it almost as much as we do. Last year alone she wore a vampire costume and dressed as Jane Lane from Daria. (Way to make the rest of us look bad with our one costume, KP.) Katy loves Halloween so much she launched her own costume shop...

The immense amount of bling Perry wore can be attributed to accessories designer Erin Lareau.There were reportedly 22 000 crystals applied to Katy Perry's costumes and bedazzled microphones for the night's performance. Along with Lareau, the singer wore elaborate diamond pieces by Lorraine...

film reel to wrap around your torso, a la Katy P. For Katy's popcorn skirt, just pick up some packing peanuts (also avail at hardware stores or any Office Max) and spray paint yellow. The rest of the costume is easy: pink Mary Janes–check, sultry black wig–check, red & white striped...

You can actually pick up Katy Perry's 'Webster's New World Dictionary' box clutch for£1749.51 via Farfetch - and I couldn't resist picking out a few of my other favourites:

, compared to Perry's gothic rose garden. Fittingly, Zooey went with a low-key beauty look—tousled waves, heavy-handed mascara, and neutral lipstick—and a clean, simple purse. Not surprisingly, Katy played up the retro theme to the max, matching her rosebud ring and speckled nail polish to...

 

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