Wanna Smell Like Katy Perry? Justin Bieber? Here's Your Guide To Celebrity Perfumes!

EVERYONE knows that in the world of post-millennium celebrity, you haven't really made it until your fans are able to exude an eau de you. Many of our favorite pop stars have jumped on the fragrance bandwagon of late. Justin Bieber's got a perfume coming out, and Katy Perry's working on one. The list of celebrity perfumes goes on and on. So here's a handy guide to the celebrity scents you NEED to be spritzing.

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My World by Justin Bieber

Justin Bieber is becoming a household name in the beauty industry in addition to the music biz. Justin's already partnered with nail polish brand OPI on an upcoming nail polish collection. And now he's slated to launch his first celebrity fragrance called My World, available at Walmart. Justin Bieber is planning to introduce dog tags and wristbands infused with his unisex scent in keeping with the current solid perfume accessories trend.

Purr by Katy Perry

Katy Perry's new fragrance, Purr, is due out in November. Katy, who recently officially became Mrs. Russell Brand, imparts a literal interpretation of the phrase "sex kitten" in her ad for the perfume. But Katy Perry loves to tread the line between goofy and seductive. We wonder if her fragrance will successfully do the same. Stay tuned!

Royal Desire by Christina Aguilera

Christina Aguilera's latest perfume actually represents your fifth chance to smell like the formerly dirrrty pop icon. But does she ever look cleeeaan in her Marilyn Monroe -inspired ad campaign for the scent! (Circa Gentlemen Prefer Blondes, specifically.) The cleavage-heavy shots show Christina in an evening gown, spraying the floral woody musk scent across her chest, which then morphs into a glowing silver necklace. Magic!

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S by Shakira

Her hips don't lie, and neither does her nose. Shakira's celebrity perfume, S by Shakira, hit shelves in September. The scent is manufactured by parent company Puig and claims to be a rich, feminine scent with notes of jasmine, sandalwood, vanilla, amber and resins. Shakira was hands-on during the creation process to make sure the fragrance effectively emancipates the wearer's inner "She Wolf." She explored all the different notes that were meaningful to her--specifically, scents like chocolate and strawberries, baby skin, balsamic resins and honey.

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Reb'l Fleur by Rihanna

Rihanna's scent Reb'l Fleur is due for release in 2011. The elegant bottle, which glows from within, is designed in the shape of an inverted high heel and boasts silken ribbons and a golden ring on the stopper. Rihanna, we're picking up what you're putting down--this is a luxe, luxurious scent! The name "Reb’l Fleur" was reportedly inspired by the tattoo she recently placed on the side of her neck that says "rebelle fleur" or "rebellious flower." We envision (ensmell?) a bold, sexy scent that incorporates an exotic fruity quality, perhaps of local produce indigenous to her native Barbados.