Halloween: Katy Perry Costume Ideas

It's Halloween week! You have just four more days to whip together an outfit ... which is basically NO TIME AT ALL. That's why we're showing you how to create some costumes D-I-Y style, so you can dress like some of the hottest divas of the year. So far, we showed you how to dress like hotties Nicki Minaj and Ke$ha. Today, let's take a look at another one of our faves: Katy Perry. It's time for a dose of glitter, "California Gurl" style, and lots of candy references! Here are five ways to dress like Katy Perry:

1. LOLLIPOP GLAM WITH A DOSE OF TUTU

Katy Perry at the 'Today Show' on Aug. 27 in New York.
Photo: Jemal Countess/Getty Images

This is one of our top Katy Perry looks because it's so easy to pull items from your closet to make this outfit. Take a ruffle skirt (like this one by LC Lauren Conrad for Kohl's) and match it with a rhinestone-covered tank (it doesn't have to be pink!). That's pretty much it! Don't forget to hit your local candy store for a Whirly Pop to make it totally Katy-icious.

+ Shirt: Old Navy Rib-Knit Embellished Tank in Think Pink ($14.50)

+ Skirt: LC Lauren Conrad Ruffle Skirt in Pink Ash ($29.99)

+ Candy: Rainbow Whirly Pop ($14.29)

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2. SHINY SHORTS

Katy Perry at the 2010 MTV Movie Awards on June 6.
Photo: Frank Micelotta/PictureGroup

Have two parties to go to and don't want to wear the same outfit? We know — it's a conundrum. Here's an idea: Recycle the rhinestone top from the first Katy look and pair it with a pair of sequin blue shorts. Add some pink earrings and high heels and you made two outfits out of one! (For a simpler look, go for denim shorts, rather than sequin ones.)

+ Shirt: Old Navy Rib-Knit Embellished Tank in Think Pink ($14.50)

+ Shorts: Blue High-Waisted Sequin Shorts ($49.99)

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3. THE CANDY GIRL

Katy Perry in Berlin on Sept. 5.
Photo: Getty Images

Katy Perry has made latex dresses HER THING this year. So, make it your own! Take a shiny spandex dress from American Apparel and cover it in candy-shape add-ons. With this look, you can reuse the dress way past Halloween.

+ Dress: American Apparel Nylon Tricot Scoop Back Tank Pencil Dress in Cobalt ($42)

+ Add-ons: Peppermint Candy Cut Outs ($4.99)

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4. THE TOKEN BLUE WIG

Katy Perry at the 2010 MTV Movie Awards on June 6.
Photo: Gregg DeGuire/PictureGroup

If you only want to buy one thing this Halloween, swing for a blue wig. Everyone will know you're Katy Perry, without question.

+ Wig: Blue Glamour Wig ($9.85)

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5. COLORFUL EXTENSIONS

Katy Perry at the 2010 MTV Video Music Awards on Sept. 12.
Photo: Frederick M. Brown/Getty Images

If electric blue wigs are too much look for you, go for a subtler way to wear color with extensions. Katy famously wore shades of pink, purple, and blue to the Video Music Awards in September. You can get clip-in styles that are very similar.

+ Hair Extensions: 16" easiLites Human Hair Clip in Bubblegum-Pink, Blueberry-Blue and Grape-Jelly-Lavender ($7.95 each)

Would you dress up as Katy Perry for Halloween?

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MORE HALLOWEEN DIVA COSTUME IDEAS

Lady Gaga

Ke$ha

Nicki Minaj

Taylor Momsen